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Kristian Seip

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Kristian Seip

Professor
Department of Mathematical Sciences

[email protected]
+4773593516 +4791129136 Sentralbygg 2, 956, Gløshaugen, Alfred Getz vei 1
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About

Kristian Seip (1962) is a Professor at the Department of Mathematical Sciences since 1993. He has been Department Chair (1997 – 2001) and Vice Dean for Education at the Faculty of Information Technology, Mathematics and Electrical Engineering (2006 – 2012). He is a member of the Analysis Group. Professor Seip has a MSc, and a PhD both from NTNU. His research areas are analysis and analytic number theory.

Fellowships/memberships

  • Academia Europeae, elected member 2025
  • Inaugural Fellow of the American Mathematical Society 2012
  • The Norwegian Academy of Science and Letters (DNVA), elected member 2005
  • The Royal Norwegian Society of Sciences and Letters (DKNVS), elected member 2001
  • Norwegian Academy of the Technological Sciences (NTVA), elected member 1999

Honors and Awards

  • Frontiers of Science Award for the paper "Large Greatest Common Divisor Sums and Extreme Values of the Riemann Zeta Function" (shared with Andriy Bondarenko) 2024
  • Doctor Honoris Causa from Universitat de Barcelona 2024
  • European Mathematical Society Lecturer 2012
  • Invited Speaker International Congress of Mathematicians 1998

Leadership of research projects with external funding

  • Co-leader (with Yurii Lyubarskii) of the 2012–2013 program “Operator-Related Function Theory and Time-Frequency Analysis”, Centre for Advanced Study, Norwegian Academy of Science and Letters, Oslo
  • PI of several projects funded by the Research Council of Norway (RCN), including “Nonlinear Problems in Mathematical Analysis” (2008–2013), “Dirichlet Series and Analysis on Polydiscs” (2013–2018), the FRIPRO/Toppforsk project "Combinatorial Methods in Analysis" (2018–2022), and the FRIPRO project "Fourier Methods and Multiplicative Analysis" (2023-2028).
  • Node Coordinator of EU Research Training Network “Classical Analysis, Operator Theory, Geometry of Banach Spaces, Their Interplay and Their Applications”, 2000–2004.  

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2024

  • Brevig, Ole Fredrik; Llinares, Adrián; Seip, Kristian. (2024) Critical Exponents of the Riesz Projection. Computational methods in Function Theory
    Academic article
  • Brevig, Ole Fredrik; Chirre, Andrés; Ortega-Cerdà, Joaquim; Seip, Kristian. (2024) Point evaluation in Paley–Wiener spaces. Journal d'Analyse Mathematique
    Academic article
  • Brevig, Ole Fredrik; Seip, Kristian. (2024) The norm of the backward shift on H1 is 2/sqrt(3). Pure and Applied Functional Analysis
    Academic article
  • Brevig, Ole Fredrik; Seip, Kristian. (2024) Maximal norm Hankel operators. Journal of Mathematical Analysis and Applications
    Academic article

2023

  • Bondarenko, Andrii; Darbar, Pranendu; Hagen, Markus Valås; Heap, Paul Winston; Seip, Kristian. (2023) A dichotomy for extreme values of zeta and Dirichlet L-functions. Bulletin of the London Mathematical Society
    Academic article
  • Brevig, Ole Fredrik; Ortega-Cerdà, Joaquim; Seip, Kristian. (2023) Hilbert points in Hardy spaces. St. Petersburg Mathematical Journal
    Academic article

2022

  • Bondarenko, Andrii; Radchenko, Danylo; Seip, Kristian. (2022) Fourier Interpolation with Zeros of Zeta and L-Functions. Constructive approximation
    Academic article
  • Konyagin, Sergei; Queffelec, Herve; Saksman, Eero; Seip, Kristian. (2022) Riesz projection and bounded mean oscillation for Dirichlet series. Studia Mathematica
    Academic article

2021

  • Brevig, Ole Fredrik; Ortega-Cerdà, Joaquim; Seip, Kristian. (2021) Idempotent Fourier multipliers acting contractively on H^p spaces. Geometric and Functional Analysis
    Academic article
  • Brevig, Ole Fredrik; Ortega-Cerdà, Joaquim; Seip, Kristian. (2021) A converse to the Schwarz lemma for planar harmonic maps. Journal of Mathematical Analysis and Applications
    Academic article

2020

  • Seip, Kristian. (2020) Universality and distribution of zeros and poles of some zeta functions. Journal d'Analyse Mathematique
    Academic article
  • Saias, Eric; Seip, Kristian. (2020) A footnote to a theorem Halász. Functiones et Approximatio Commentarii Mathematici
    Academic article

2019

  • Bondarenko, Andrii; Brevig, Ole Fredrik; Saksman , Eero; Seip, Kristian. (2019) Linear space properties of H^p spaces of Dirichlet series. Transactions of the American Mathematical Society
    Academic article
  • Brevig, Ole Fredrik; Perfekt, Karl-Mikael; Seip, Kristian. (2019) Volterra operators on Hardy spaces of Dirichlet series. Journal für die Reine und Angewandte Mathematik
    Academic article

2018

  • Bondarenko, Andrii; Brevig, Ole Fredrik; Saksman , Eero; Seip, Kristian; Zhao, Jing. (2018) Pseudomoments of the Riemann zeta function. Bulletin of the London Mathematical Society
    Academic article
  • Brevig, Ole Fredrik; Ortega-Cerdà, Joaquim; Seip, Kristian; Zhao, Jing. (2018) Contractive inequalities for Hardy spaces. Functiones et Approximatio Commentarii Mathematici
    Academic article
  • Bondarenko, Andrii; Seip, Kristian. (2018) Extreme values of the Riemann zeta function and its argument. Mathematische Annalen
    Academic article
  • Gesztesy, Fritz; Hanche-Olsen, Harald; Jakobsen, Espen Robstad; Lyubarskii, Yurii; Risebro, Nils Henrik; Seip, Kristian. (2018) Non-linear Partial Differential Equations, Mathematical Physics, and Stochastic Analysis: The Helge Holden Anniversary Volume. European Mathematical Society (EMS) Press European Mathematical Society (EMS) Press
    Academic anthology/Conference proceedings
  • Bondarenko, Andrii; Seip, Kristian. (2018) Note on the resonance method for the Riemann zeta function. Operator Theory: Advances and Applications
    Academic article

2017

  • Bondarenko, Andrii; Seip, Kristian. (2017) Large greatest common divisor sums and extreme values of the Riemann zeta function. Duke mathematical journal
    Academic article

2016

  • Bondarenko, Andrii; Hilberdink, Titus; Seip, Kristian. (2016) Gal-type GCD sums beyond the critical line. Journal of Number Theory
    Academic article
  • Saksman, Eero; Seip, Kristian. (2016) Some open questions in analysis for Dirichlet series. American Mathematical Society (AMS)
    Academic chapter/article/Conference paper
  • Brevig, Ole Fredrik; Perfekt, Karl-Mikael; Seip, Kristian; Siskakis, Aristomenis; Vukotic, Dragan. (2016) The multiplicative Hilbert matrix. Advances in Mathematics
    Academic article
  • Bondarenko, Andrii; Seip, Kristian. (2016) Helson's problem for sums of a random multiplicative function. Mathematika
    Academic article
  • Bayart, Frederic; Queffelec, Herve; Seip, Kristian. (2016) Approximation numbers of composition operators on H^p spaces of Dirichlet series. Annales de l'Institut Fourier
    Academic article

2015

  • Bondarenko, Andrii; Seip, Kristian. (2015) GCD sums and complete sets of square-free numbers. Bulletin of the London Mathematical Society
    Academic article
  • Queffelec, Herve; Seip, Kristian. (2015) Decay rates for approximation numbers of composition operators. Journal d'Analyse Mathematique
    Academic article
  • Queffelec, Herve; Seip, Kristian. (2015) Approximation numbers of composition operators on the H^2 space of Dirichlet series. Journal of Functional Analysis
    Academic article
  • Bondarenko, Andrii; Heap, Winston Paul; Seip, Kristian. (2015) An inequality of Hardy-Littlewood type for Dirichlet polynomials. Journal of Number Theory
    Academic article
  • Aistleitner, Christoph; Berkes, Istvan; Seip, Kristian; Weber, Michel. (2015) Convergence of series of dilated functions and spectral norms of GCD matrices. Acta Arithmetica
    Academic article
  • Aistleitner, Christoph; Berkes, Istvan; Seip, Kristian. (2015) GCD sums from Poisson integrals and systems of dilated functions. Journal of the European Mathematical Society (Print)
    Academic article

2014

  • Bondarenko, Andrii; Seip, Kristian. (2014) GCD sums and complete sets of square-free numbers. Bulletin of the London Mathematical Society
    Academic article

2013

  • Seip, Kristian. (2013) Zeros of functions in Hilbert spaces of Dirichlet series. Mathematische Zeitschrift
    Academic article
  • Seip, Kristian. (2013) Interpolation and sampling in small Bergman spaces. Collectanea Mathematica
    Academic article
  • Seip, Kristian; Youssfi, El Hassan. (2013) Hankel Operators on Fock Spaces and Related Bergman Kernel Estimates. Journal of Geometric Analysis
    Academic article

2012

  • El-Fallah, Omar; Kellay, Karim; Seip, Kristian. (2012) Cyclicity of singular inner functions from the corona theorem. Journal of the Institute of Mathematics of Jussieu
    Academic article
  • Ortega-Cerdà, Joaquim; Seip, Kristian. (2012) A lower bound in Nehari's theorem on the polydisc. Journal d'Analyse Mathematique
    Academic article

2011

  • Seip, Kristian; Belov, Yurii; Mengestie, Tesfa Yigrem. (2011) Discrete Hilbert transforms on sparse sequences. Proceedings of the London Mathematical Society
    Academic article
  • Defant, Andreas; Frerick, Leonhard; Ortega-Cerdà, Joaquim; Ounaies, Myriam; Seip, Kristian. (2011) The Bohnenblust-Hille inequality for homogeneous polynomials is hypercontractive. Annals of Mathematics
    Academic article
  • Seip, Kristian; Marzo, Sanchez Jorge. (2011) L^\infty to L^p constants for Riesz projections. Bulletin des Sciences Mathématiques
    Academic article
  • Marzo, Sanchez Jorge; Seip, Kristian. (2011) L-infinity to L-p constants for Riesz projections. Bulletin des Sciences Mathématiques
    Academic article

2010

  • Belov, Yury; Mengestie, Tesfa Yigrem; Seip, Kristian. (2010) Unitary discrete Hilbert transforms. Journal d'Analyse Mathematique
    Academic article
  • Seip, Kristian; Mashreghi, Javad; Ransford, Thomas. (2010) Hilbert spaces of analytic functions. American Mathematical Society (AMS) American Mathematical Society (AMS)
    Academic anthology/Conference proceedings

2009

  • Lind-Johansen, Øyvind; Seip, Kristian; Skaar, Johannes. (2009) The perfect lens on a finite bandwidth. Journal of Mathematical Physics
    Academic article
  • Saksman, Eero; Seip, Kristian. (2009) Integral means and boundary limits of Dirichlet series. Bulletin of the London Mathematical Society
    Academic article
  • Seip, Kristian. (2009) Interpolation by Dirichlet Series in H^infty. American Mathematical Society (AMS)
    Academic chapter/article/Conference paper
  • Ascensi, Gerard; Lyubarskii, Yurii; Seip, Kristian. (2009) Phase space distribution of Gabor expansions. Applied and Computational Harmonic Analysis
    Academic article
  • Marzo, Jordi; Seip, Kristian. (2009) THE KADETS 1/4 THEOREM FOR POLYNOMIALS. Mathematica Scandinavica
    Academic article

2008

  • Seip, Kristian; Groechenig, Karlheinz; Kutyniok, Gitta. (2008) Landau's necessary density conditions for LCA groups. Journal of Functional Analysis
    Academic article
  • Olsen, Jan-Fredrik; Seip, Kristian. (2008) Local interpolation in Hilbert spaces of Dirichlet series. Proceedings of the American Mathematical Society
    Academic article

2006

  • Skaar, Johannes; Seip, Kristian. (2006) Bounds for the refractive indices of metamaterials. Journal of Physics D: Applied Physics
    Academic article
  • Hjelle, Geir Arne; Seip, Kristian. (2006) Approximations by interpolating Blaschke products. NTNU, Tapir Uttrykk
    Doctoral dissertation

2005

  • Seip, Kristian; Skaar, Johannes. (2005) An extremal problem related to negative refraction. Skrifter
    Academic article

2004

  • Ortega-Cerda, J; Seip, Kristian. (2004) Harmonic measure and uniform densities. Indiana University Mathematics Journal
    Academic article
  • Nicolau, A; Ortega-Cerda, J; Seip, Kristian. (2004) The constant of interpolation. Pacific Journal of Mathematics
    Academic article
  • Seip, Kristian. (2004) Surjective Toeplitz operators. Acta Scientarum Mathematicarum
    Academic article
  • Seip, Kristian. (2004) Interpolation and sampling in spaces of analytic functions. American Mathematical Society (AMS) University Lecture Series (33)
    Academic monograph

2003

  • Seip, Kristian; Chicon, Kinga. (2003) Weighted holomorphic spaces with trivial closed range multiplication operators. Proceedings of the American Mathematical Society
    Academic article
  • Seip, Kristian. (2003) Extremal functions as divisors for kernels of Toeplitz operators. Journal of Functional Analysis
    Academic article

2002

  • Seip, Kristian; Ortega-Cerda, Joaquim. (2002) Fourier frames. Annals of Mathematics
    Academic article
  • Seip, Kristian; Lyubarskii, Yurii. (2002) Weighted Paley-Wiener spaces. Journal of The American Mathematical Society
    Academic article

2001

  • Lyubarskii, Yurii; Seip, Kristian. (2001) A splitting problem for unconditional bases of complex exponentials. Israel mathematical conference proceedings. (15)
    Report

2000

  • Schuster, Alexander P.; Seip, Kristian. (2000) Weak conditions for interpolation in holomorphic spaces. Publicacions matemàtiques
    Academic article
  • Seip, Kristian. (2000) On Gröchenig, Heil, and Walnut's proof of the local three squares theorem. Arkiv för matematik
    Academic article
  • Duren, Peter L.; Schuster, Alexander P.; Seip, Kristian. (2000) Uniform densities of regular sequences in the unit disk. Transactions of the American Mathematical Society
    Academic article

1999

  • Flornes, Kristin; Lyubarskii, Yurii; Seip, Kristian. (1999) A direct interpolation method for irregular sampling. Applied and Computational Harmonic Analysis
    Academic article
  • Ortega-Cerda, Joaquim; Seip, Kristian. (1999) Multipliers for entire functions and an interpolation problem of Beurling. Journal of Functional Analysis
    Academic article
  • Lyubarskii, Yurii; Seip, Kristian. (1999) Convergence and summability of Gabor expansions at the Nyquist density. Journal of Fourier Analysis and Applications
    Academic article
  • Hedenmalm, Håkan; Lindquist, Peter; Seip, Kristian. (1999) Addendum to "a Hilbert space of dirichlet series and systems of dilated functions in L%2(0,1)".
    Academic chapter/article/Conference paper

1998

  • Ortega-Cerdà, Joaquim; Seip, Kristian. (1998) Beurling-type density theorems for weighted LP spaces of entire functions. Journal d'Analyse Mathematique
    Academic article
  • Seip, Kristian; Ortega-Cerdà, Joaquim. (1998) Beurling-type density theorems for weighted L^P spaces of entire function. Journal d'Analyse Mathematique
    Academic article
  • Lindqvist, Peter; Seip, Kristian. (1998) Note on some greatest common divisor matrices. Acta Arithmetica
    Academic article

1997

  • Seip, Kristian; Ulanovskii, Aleksander. (1997) Beurling-Malliavin density of random sequences. Proceedings of the American Mathematical Society
    Academic article
  • Lyubarskii, Yurii; Seip, Kristian. (1997) Complete interpolating sequences for Paley-Wiener spaces and Muckenhoupt's (Ap) condition. Revista matemática iberoamericana
    Academic article
  • Lyubarskii, Yurii; Seip, Kristian. (1997) Sampling and interpolating sequences for multiband-limited functions and exponential bases on disconnected sets. Journal of Fourier Analysis and Applications
    Academic article
  • Hedenmalm, Håkan; Lindqvist, Peter; Seip, Kristian. (1997) A Hilbert space of Dirichlet series and systems of dilated functions in L%2(0,1). Duke mathematical journal
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander. (1997) Beurling-Malliavin density of random sequences. Proceedings of the American Mathematical Society
    Academic article

1996

  • Seip, Kristian; Ulanovskii, Aleksander. (1996) Random exponential frames. Journal of the London Mathematical Society
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander. (1996) Random exponential frames. Journal of the London Mathematical Society
    Academic article

1995

  • Seip, Kristian. (1995) On the connection between exponential bases and certain related sequences in L2(-_p,_p). Journal of Functional Analysis
    Academic article
  • Seip, Kristian. (1995) A simple construction of exponential bases in L2 of the union of several intervals. Proceedings of the Edinburgh Mathematical Society
    Academic article
  • Seip, Kristian. (1995) An extension of the Blaschke condition. Journal of the London Mathematical Society
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander. (1995) A best covering problem. Mathematica Scandinavica
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander; ukjent-for-m018958, ukjent-for-m018958. (1995) A best covering problem. ?
    Academic article

1994

  • Seip, Kristian. (1994) On a theorem of Korenblum. Arkiv för matematik
    Academic article

1992

  • Seip, Kristian. (1992) Density theorems for sampling and interpolation in the Bargmann-Fock space I. Journal für die Reine und Angewandte Mathematik
    Academic article
  • Seip, Kristian. (1992) Density theorems for sampling and interpolation in the Bargmann-Fock space II. Journal für die Reine und Angewandte Mathematik
    Academic article
  • Seip, Kristian. (1992) Density theorems for sampling and interpolation in the Bargmann-Fock space. Bulletin of the American Mathematical Society
    Academic article
  • Seip, Kristian. (1992) Addendum to "Curves of maximum modulus in coherent state representations". Annales Henri Poincaré - A Journal of Theoretical and Mathematical Physics
    Academic article

1991

  • Owren, Brynjulf; Seip, Kristian. (1991) A uniqueness result related to the stability of explicit Runge-Kutta methods. BIT Numerical Mathematics
    Academic article

1990

  • Owren, Brynjulf; Seip, Kristian. (1990) Some stability results for explicit Runge-Kutta methods. BIT Numerical Mathematics
    Academic article

Journal publications

  • Brevig, Ole Fredrik; Llinares, Adrián; Seip, Kristian. (2024) Critical Exponents of the Riesz Projection. Computational methods in Function Theory
    Academic article
  • Brevig, Ole Fredrik; Chirre, Andrés; Ortega-Cerdà, Joaquim; Seip, Kristian. (2024) Point evaluation in Paley–Wiener spaces. Journal d'Analyse Mathematique
    Academic article
  • Brevig, Ole Fredrik; Seip, Kristian. (2024) The norm of the backward shift on H1 is 2/sqrt(3). Pure and Applied Functional Analysis
    Academic article
  • Brevig, Ole Fredrik; Seip, Kristian. (2024) Maximal norm Hankel operators. Journal of Mathematical Analysis and Applications
    Academic article
  • Bondarenko, Andrii; Darbar, Pranendu; Hagen, Markus Valås; Heap, Paul Winston; Seip, Kristian. (2023) A dichotomy for extreme values of zeta and Dirichlet L-functions. Bulletin of the London Mathematical Society
    Academic article
  • Brevig, Ole Fredrik; Ortega-Cerdà, Joaquim; Seip, Kristian. (2023) Hilbert points in Hardy spaces. St. Petersburg Mathematical Journal
    Academic article
  • Bondarenko, Andrii; Radchenko, Danylo; Seip, Kristian. (2022) Fourier Interpolation with Zeros of Zeta and L-Functions. Constructive approximation
    Academic article
  • Konyagin, Sergei; Queffelec, Herve; Saksman, Eero; Seip, Kristian. (2022) Riesz projection and bounded mean oscillation for Dirichlet series. Studia Mathematica
    Academic article
  • Brevig, Ole Fredrik; Ortega-Cerdà, Joaquim; Seip, Kristian. (2021) Idempotent Fourier multipliers acting contractively on H^p spaces. Geometric and Functional Analysis
    Academic article
  • Brevig, Ole Fredrik; Ortega-Cerdà, Joaquim; Seip, Kristian. (2021) A converse to the Schwarz lemma for planar harmonic maps. Journal of Mathematical Analysis and Applications
    Academic article
  • Seip, Kristian. (2020) Universality and distribution of zeros and poles of some zeta functions. Journal d'Analyse Mathematique
    Academic article
  • Saias, Eric; Seip, Kristian. (2020) A footnote to a theorem Halász. Functiones et Approximatio Commentarii Mathematici
    Academic article
  • Bondarenko, Andrii; Brevig, Ole Fredrik; Saksman , Eero; Seip, Kristian. (2019) Linear space properties of H^p spaces of Dirichlet series. Transactions of the American Mathematical Society
    Academic article
  • Brevig, Ole Fredrik; Perfekt, Karl-Mikael; Seip, Kristian. (2019) Volterra operators on Hardy spaces of Dirichlet series. Journal für die Reine und Angewandte Mathematik
    Academic article
  • Bondarenko, Andrii; Brevig, Ole Fredrik; Saksman , Eero; Seip, Kristian; Zhao, Jing. (2018) Pseudomoments of the Riemann zeta function. Bulletin of the London Mathematical Society
    Academic article
  • Brevig, Ole Fredrik; Ortega-Cerdà, Joaquim; Seip, Kristian; Zhao, Jing. (2018) Contractive inequalities for Hardy spaces. Functiones et Approximatio Commentarii Mathematici
    Academic article
  • Bondarenko, Andrii; Seip, Kristian. (2018) Extreme values of the Riemann zeta function and its argument. Mathematische Annalen
    Academic article
  • Bondarenko, Andrii; Seip, Kristian. (2018) Note on the resonance method for the Riemann zeta function. Operator Theory: Advances and Applications
    Academic article
  • Bondarenko, Andrii; Seip, Kristian. (2017) Large greatest common divisor sums and extreme values of the Riemann zeta function. Duke mathematical journal
    Academic article
  • Bondarenko, Andrii; Hilberdink, Titus; Seip, Kristian. (2016) Gal-type GCD sums beyond the critical line. Journal of Number Theory
    Academic article
  • Brevig, Ole Fredrik; Perfekt, Karl-Mikael; Seip, Kristian; Siskakis, Aristomenis; Vukotic, Dragan. (2016) The multiplicative Hilbert matrix. Advances in Mathematics
    Academic article
  • Bondarenko, Andrii; Seip, Kristian. (2016) Helson's problem for sums of a random multiplicative function. Mathematika
    Academic article
  • Bayart, Frederic; Queffelec, Herve; Seip, Kristian. (2016) Approximation numbers of composition operators on H^p spaces of Dirichlet series. Annales de l'Institut Fourier
    Academic article
  • Bondarenko, Andrii; Seip, Kristian. (2015) GCD sums and complete sets of square-free numbers. Bulletin of the London Mathematical Society
    Academic article
  • Queffelec, Herve; Seip, Kristian. (2015) Decay rates for approximation numbers of composition operators. Journal d'Analyse Mathematique
    Academic article
  • Queffelec, Herve; Seip, Kristian. (2015) Approximation numbers of composition operators on the H^2 space of Dirichlet series. Journal of Functional Analysis
    Academic article
  • Bondarenko, Andrii; Heap, Winston Paul; Seip, Kristian. (2015) An inequality of Hardy-Littlewood type for Dirichlet polynomials. Journal of Number Theory
    Academic article
  • Aistleitner, Christoph; Berkes, Istvan; Seip, Kristian; Weber, Michel. (2015) Convergence of series of dilated functions and spectral norms of GCD matrices. Acta Arithmetica
    Academic article
  • Aistleitner, Christoph; Berkes, Istvan; Seip, Kristian. (2015) GCD sums from Poisson integrals and systems of dilated functions. Journal of the European Mathematical Society (Print)
    Academic article
  • Bondarenko, Andrii; Seip, Kristian. (2014) GCD sums and complete sets of square-free numbers. Bulletin of the London Mathematical Society
    Academic article
  • Seip, Kristian. (2013) Zeros of functions in Hilbert spaces of Dirichlet series. Mathematische Zeitschrift
    Academic article
  • Seip, Kristian. (2013) Interpolation and sampling in small Bergman spaces. Collectanea Mathematica
    Academic article
  • Seip, Kristian; Youssfi, El Hassan. (2013) Hankel Operators on Fock Spaces and Related Bergman Kernel Estimates. Journal of Geometric Analysis
    Academic article
  • El-Fallah, Omar; Kellay, Karim; Seip, Kristian. (2012) Cyclicity of singular inner functions from the corona theorem. Journal of the Institute of Mathematics of Jussieu
    Academic article
  • Ortega-Cerdà, Joaquim; Seip, Kristian. (2012) A lower bound in Nehari's theorem on the polydisc. Journal d'Analyse Mathematique
    Academic article
  • Seip, Kristian; Belov, Yurii; Mengestie, Tesfa Yigrem. (2011) Discrete Hilbert transforms on sparse sequences. Proceedings of the London Mathematical Society
    Academic article
  • Defant, Andreas; Frerick, Leonhard; Ortega-Cerdà, Joaquim; Ounaies, Myriam; Seip, Kristian. (2011) The Bohnenblust-Hille inequality for homogeneous polynomials is hypercontractive. Annals of Mathematics
    Academic article
  • Seip, Kristian; Marzo, Sanchez Jorge. (2011) L^\infty to L^p constants for Riesz projections. Bulletin des Sciences Mathématiques
    Academic article
  • Marzo, Sanchez Jorge; Seip, Kristian. (2011) L-infinity to L-p constants for Riesz projections. Bulletin des Sciences Mathématiques
    Academic article
  • Belov, Yury; Mengestie, Tesfa Yigrem; Seip, Kristian. (2010) Unitary discrete Hilbert transforms. Journal d'Analyse Mathematique
    Academic article
  • Lind-Johansen, Øyvind; Seip, Kristian; Skaar, Johannes. (2009) The perfect lens on a finite bandwidth. Journal of Mathematical Physics
    Academic article
  • Saksman, Eero; Seip, Kristian. (2009) Integral means and boundary limits of Dirichlet series. Bulletin of the London Mathematical Society
    Academic article
  • Ascensi, Gerard; Lyubarskii, Yurii; Seip, Kristian. (2009) Phase space distribution of Gabor expansions. Applied and Computational Harmonic Analysis
    Academic article
  • Marzo, Jordi; Seip, Kristian. (2009) THE KADETS 1/4 THEOREM FOR POLYNOMIALS. Mathematica Scandinavica
    Academic article
  • Seip, Kristian; Groechenig, Karlheinz; Kutyniok, Gitta. (2008) Landau's necessary density conditions for LCA groups. Journal of Functional Analysis
    Academic article
  • Olsen, Jan-Fredrik; Seip, Kristian. (2008) Local interpolation in Hilbert spaces of Dirichlet series. Proceedings of the American Mathematical Society
    Academic article
  • Skaar, Johannes; Seip, Kristian. (2006) Bounds for the refractive indices of metamaterials. Journal of Physics D: Applied Physics
    Academic article
  • Seip, Kristian; Skaar, Johannes. (2005) An extremal problem related to negative refraction. Skrifter
    Academic article
  • Ortega-Cerda, J; Seip, Kristian. (2004) Harmonic measure and uniform densities. Indiana University Mathematics Journal
    Academic article
  • Nicolau, A; Ortega-Cerda, J; Seip, Kristian. (2004) The constant of interpolation. Pacific Journal of Mathematics
    Academic article
  • Seip, Kristian. (2004) Surjective Toeplitz operators. Acta Scientarum Mathematicarum
    Academic article
  • Seip, Kristian; Chicon, Kinga. (2003) Weighted holomorphic spaces with trivial closed range multiplication operators. Proceedings of the American Mathematical Society
    Academic article
  • Seip, Kristian. (2003) Extremal functions as divisors for kernels of Toeplitz operators. Journal of Functional Analysis
    Academic article
  • Seip, Kristian; Ortega-Cerda, Joaquim. (2002) Fourier frames. Annals of Mathematics
    Academic article
  • Seip, Kristian; Lyubarskii, Yurii. (2002) Weighted Paley-Wiener spaces. Journal of The American Mathematical Society
    Academic article
  • Schuster, Alexander P.; Seip, Kristian. (2000) Weak conditions for interpolation in holomorphic spaces. Publicacions matemàtiques
    Academic article
  • Seip, Kristian. (2000) On Gröchenig, Heil, and Walnut's proof of the local three squares theorem. Arkiv för matematik
    Academic article
  • Duren, Peter L.; Schuster, Alexander P.; Seip, Kristian. (2000) Uniform densities of regular sequences in the unit disk. Transactions of the American Mathematical Society
    Academic article
  • Flornes, Kristin; Lyubarskii, Yurii; Seip, Kristian. (1999) A direct interpolation method for irregular sampling. Applied and Computational Harmonic Analysis
    Academic article
  • Ortega-Cerda, Joaquim; Seip, Kristian. (1999) Multipliers for entire functions and an interpolation problem of Beurling. Journal of Functional Analysis
    Academic article
  • Lyubarskii, Yurii; Seip, Kristian. (1999) Convergence and summability of Gabor expansions at the Nyquist density. Journal of Fourier Analysis and Applications
    Academic article
  • Ortega-Cerdà, Joaquim; Seip, Kristian. (1998) Beurling-type density theorems for weighted LP spaces of entire functions. Journal d'Analyse Mathematique
    Academic article
  • Seip, Kristian; Ortega-Cerdà, Joaquim. (1998) Beurling-type density theorems for weighted L^P spaces of entire function. Journal d'Analyse Mathematique
    Academic article
  • Lindqvist, Peter; Seip, Kristian. (1998) Note on some greatest common divisor matrices. Acta Arithmetica
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander. (1997) Beurling-Malliavin density of random sequences. Proceedings of the American Mathematical Society
    Academic article
  • Lyubarskii, Yurii; Seip, Kristian. (1997) Complete interpolating sequences for Paley-Wiener spaces and Muckenhoupt's (Ap) condition. Revista matemática iberoamericana
    Academic article
  • Lyubarskii, Yurii; Seip, Kristian. (1997) Sampling and interpolating sequences for multiband-limited functions and exponential bases on disconnected sets. Journal of Fourier Analysis and Applications
    Academic article
  • Hedenmalm, Håkan; Lindqvist, Peter; Seip, Kristian. (1997) A Hilbert space of Dirichlet series and systems of dilated functions in L%2(0,1). Duke mathematical journal
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander. (1997) Beurling-Malliavin density of random sequences. Proceedings of the American Mathematical Society
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander. (1996) Random exponential frames. Journal of the London Mathematical Society
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander. (1996) Random exponential frames. Journal of the London Mathematical Society
    Academic article
  • Seip, Kristian. (1995) On the connection between exponential bases and certain related sequences in L2(-_p,_p). Journal of Functional Analysis
    Academic article
  • Seip, Kristian. (1995) A simple construction of exponential bases in L2 of the union of several intervals. Proceedings of the Edinburgh Mathematical Society
    Academic article
  • Seip, Kristian. (1995) An extension of the Blaschke condition. Journal of the London Mathematical Society
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander. (1995) A best covering problem. Mathematica Scandinavica
    Academic article
  • Seip, Kristian; Ulanovskii, Aleksander; ukjent-for-m018958, ukjent-for-m018958. (1995) A best covering problem. ?
    Academic article
  • Seip, Kristian. (1994) On a theorem of Korenblum. Arkiv för matematik
    Academic article
  • Seip, Kristian. (1992) Density theorems for sampling and interpolation in the Bargmann-Fock space I. Journal für die Reine und Angewandte Mathematik
    Academic article
  • Seip, Kristian. (1992) Density theorems for sampling and interpolation in the Bargmann-Fock space II. Journal für die Reine und Angewandte Mathematik
    Academic article
  • Seip, Kristian. (1992) Density theorems for sampling and interpolation in the Bargmann-Fock space. Bulletin of the American Mathematical Society
    Academic article
  • Seip, Kristian. (1992) Addendum to "Curves of maximum modulus in coherent state representations". Annales Henri Poincaré - A Journal of Theoretical and Mathematical Physics
    Academic article
  • Owren, Brynjulf; Seip, Kristian. (1991) A uniqueness result related to the stability of explicit Runge-Kutta methods. BIT Numerical Mathematics
    Academic article
  • Owren, Brynjulf; Seip, Kristian. (1990) Some stability results for explicit Runge-Kutta methods. BIT Numerical Mathematics
    Academic article

Books

  • Gesztesy, Fritz; Hanche-Olsen, Harald; Jakobsen, Espen Robstad; Lyubarskii, Yurii; Risebro, Nils Henrik; Seip, Kristian. (2018) Non-linear Partial Differential Equations, Mathematical Physics, and Stochastic Analysis: The Helge Holden Anniversary Volume. European Mathematical Society (EMS) Press European Mathematical Society (EMS) Press
    Academic anthology/Conference proceedings
  • Seip, Kristian; Mashreghi, Javad; Ransford, Thomas. (2010) Hilbert spaces of analytic functions. American Mathematical Society (AMS) American Mathematical Society (AMS)
    Academic anthology/Conference proceedings
  • Seip, Kristian. (2004) Interpolation and sampling in spaces of analytic functions. American Mathematical Society (AMS) University Lecture Series (33)
    Academic monograph

Part of book/report

  • Saksman, Eero; Seip, Kristian. (2016) Some open questions in analysis for Dirichlet series. American Mathematical Society (AMS)
    Academic chapter/article/Conference paper
  • Seip, Kristian. (2009) Interpolation by Dirichlet Series in H^infty. American Mathematical Society (AMS)
    Academic chapter/article/Conference paper
  • Hedenmalm, Håkan; Lindquist, Peter; Seip, Kristian. (1999) Addendum to "a Hilbert space of dirichlet series and systems of dilated functions in L%2(0,1)".
    Academic chapter/article/Conference paper

Report

  • Hjelle, Geir Arne; Seip, Kristian. (2006) Approximations by interpolating Blaschke products. NTNU, Tapir Uttrykk
    Doctoral dissertation
  • Lyubarskii, Yurii; Seip, Kristian. (2001) A splitting problem for unconditional bases of complex exponentials. Israel mathematical conference proceedings. (15)
    Report

Teaching

Courses

  • MA6301 - Number Theory
  • MA1301 - Number Theory
  • MA3150 - Analytic Number Theory

Outreach

2024

  • Academic lecture
    Seip, Kristian. (2024) Fourier interpolation and the uncertainty principle. Umeå University Mittag-Leffler Colloquium , Umeå 2024-02-12 - 2024-02-12
  • Academic lecture
    Seip, Kristian. (2024) Critical exponents for the Riesz projection. Stockholms universitet Analysis Seminar , Stockholm 2024-02-14 - 2024-02-14
  • Lecture
    Seip, Kristian. (2024) Fourier interpolation and the uncertainty principle. Universitat de Barcelona Colloquium , Barcelona 2024-04-17 - 2024-04-17
  • Academic lecture
    Seip, Kristian. (2024) The norm of the backward shift on H^1 is 2 over the squareroot of 3. CIRM Shapes and shades of analysis , Luminy 2024-04-29 - 2024-05-03
  • Academic lecture
    Seip, Kristian. (2024) Critical exponents for the Riesz projection. University of Saarland Function Spaces 24 , Saarbrücken 2024-04-13 - 2024-05-17
  • Academic lecture
    Seip, Kristian. (2024) Fourier interpolation and the uncertainty principle. Universitetet i Oslo Nasjonal matematikermøte , Oslo 2024-09-12 - 2024-09-13
  • Academic lecture
    Seip, Kristian. (2024) Point evaluation in Paley--Wiener spaces. CIRM Analytic Function Spaces, Their Operators and Applications, celebrating the 60th birthday of Bill Ross , Luminy 2024-12-02 - 2024-12-06

2023

  • Academic lecture
    Seip, Kristian. (2023) Point evaluation in Paley--Wiener spaces. TU Graz Analysis and Number Theory Seminar , Graz 2023-05-05 - 2023-05-05

2022

  • Popular scientific lecture
    Seip, Kristian. (2022) Riemann-hypotesen. Realfagsstudentene ved NTNU Onsdagsforelesning 2022-05-04 - 2022-05-04
  • Academic lecture
    Seip, Kristian. (2022) Contractive norm inequalities. King's College London 73rd British Mathematical Colloquium, Morning Lecture , London 2022-06-06 - 2022-06-09
  • Academic lecture
    Seip, Kristian. (2022) Point evaluation in Paley--Wiener spaces. Université de Bordeaux Bordeaux Analysis Seminar , Bordeaux 2022-12-01 - 2022-12-01
  • Academic lecture
    Seip, Kristian. (2022) Idempotent Fourier multipliers acting contractively on H^p spaces. Polish Academy of Sciences, Banach Center Operators, Functions, Systems: Classical and Modern , Bedlewo 2022-06-12 - 2022-06-18
  • Academic lecture
    Seip, Kristian. (2022) Inequalities via Numerics. NTNU Theoretical and Computational Aspects of Dynamical Systems , Trysil 2022-12-12 - 2022-12-15

2021

  • Academic lecture
    Seip, Kristian. (2021) Contractive inequalities for Hardy spaces. University of Ghent 13th ISAAC Congress (online conference) , Ghent (Zoom talks) 2021-08-02 - 2021-08-06
  • Academic lecture
    Seip, Kristian. (2021) Contractive inequalities for Hardy spaces. Fields Institute Colloquium on Analytic Function Spaces and their Applications , Toronto (Zoom talk) 2021-10-22 - 2021-10-22
  • Academic lecture
    Seip, Kristian. (2021) Contractive inequalities for Hardy spaces. University of Bordeaux/St. Petersburg State University ”Analysis Day” on the occasion of 80-th anniversary of Nikolai Nikolski , Zoom talk, Bordeaux 2021-07-05 - 2021-07-05
  • Academic lecture
    Seip, Kristian. (2021) Idempotent Fourier multipliers acting contractively on H^p spaces. CIRM Frontiers of Operator Theory , Luminy 2021-11-29 - 2021-12-03
  • Academic lecture
    Seip, Kristian. (2021) Idempotent Fourier multipliers acting contractively on H^p spaces. University of Beograd Analysis Seminar, Beograd , Zoom talk, Beograd 2021-05-12 - 2021-05-12
  • Academic lecture
    Seip, Kristian. (2021) Idempotent Fourier multipliers acting contractively on H^p spaces . University of Helsinki Geometric and Functional Analysis Seminer , Zoom talk, Helsinki 2021-05-06 - 2021-05-06
  • Popular scientific lecture
    Seip, Kristian. (2021) Riemann-hypotesen. Delta, Linjeforeningen for matematikk og fysikk ved NTNU Realfagsdagene 2021 , Trondheim (online) 2021-03-09 - 2021-03-09

2020

  • Academic lecture
    Seip, Kristian. (2020) Fourier interpolation with the zeros of the Riemann zeta function. Universities of Rome (Tor Vergata), Milano, Bologna Online Seminar on Complex Analysis and Allied Topics, Roma, Milano, Bologna , Roma 2020-10-06 - 2020-10-06
  • Academic lecture
    Seip, Kristian. (2020) Fourier interpolation with the zeros of the Riemann zeta function. University of Georgia Inaugural Lecture Tblisi Analysis & PDE Seminar , Tblisi (online) 2020-11-16 - 2020-11-16
  • Academic lecture
    Seip, Kristian. (2020) Fourier interpolation with zeros of zeta and L-functions. Tel Aviv University Tel Aviv University Analysis Seminar , Tel Aviv 2020-06-16 - 2020-06-16
  • Academic lecture
    Seip, Kristian. (2020) Fourier interpolation with zeros of zeta and L-functions. IMPA Analysis and PDE Webinar (IMPA) , Rio de Janeiro 2020-05-28 - 2020-05-28

2019

  • Academic lecture
    Seip, Kristian. (2019) The H^1 inequalities of Carleman and Hardy from a multiplicative point of view. King's College London Analysis, Probability, Number Theory and Their Interaction , London 2019-04-05 - 2019-04-05
  • Academic lecture
    Seip, Kristian. (2019) Value distribution of Dirichlet series. Centre de Recerca Matemàtica Advanced Course, Intensive Research Programme, "Spaces of Analytic Functions: Approximation, Interpolation, Sampling"I , Bellaterra, Barcelona 2019-11-04 - 2019-11-07
  • Academic lecture
    Seip, Kristian. (2019) Some glimpses of the Riemann zeta function. Hassan II Academy of Sciences and Technology Challenges and New Perspectives in Mathematics , Rabat 2019-11-14 - 2019-11-15
  • Academic lecture
    Seip, Kristian. (2019) Value distribution of some zeta functions. Weizmann Institute Explorations in Harmonic Analysis and Other realms, A conference honoring Alexander Olevskii's 80th birthday , Rehovot 2019-02-10 - 2019-02-14
  • Academic lecture
    Seip, Kristian. (2019) Encounters with the Riemann Zeta Function. Universitat de Barcelona Barcelona Analysis Conference 2019 , Barcelona 2019-06-25 - 2019-06-28
  • Academic lecture
    Seip, Kristian. (2019) Value Distribution of Some Zeta Functions. University of Copenhagen Holomorphic Days , København 2019-06-18 - 2019-06-19
  • Academic lecture
    Seip, Kristian. (2019) Value distribution of some zeta functions. CIRM Centre International de Rencontres Mathématiques Interpolation in Spaces of Analytic Functions , Luminy 2019-11-18 - 2019-11-22
  • Academic lecture
    Seip, Kristian. (2019) On and around the Riemann zeta function. Universidad Carlos III de Madrid Colloquium , Madrid 2019-12-03 - 2019-12-03
  • Academic lecture
    Seip, Kristian. (2019) Volterra operators on Hardy spaces of Dirichlet series. Centre de Recerca Matemàtica Spaces of Analytic Functions: Approximation, Interpolation, Sampling , Bellaterra, Barcelona 2019-11-25 - 2019-11-29
  • Academic lecture
    Seip, Kristian. (2019) Value distribution of some zeta functions. Istituto Nationale di Alta Matematica New Trends in Complex and Fourier Analysis, and Operator Theory , Roma 2019-09-23 - 2019-09-27

2018

  • Academic lecture
    Seip, Kristian. (2018) Extreme values of the Riemann zeta function and its argument. Lund University N-Cube Days , Lund 2018-11-30 - 2018-12-01
  • Academic lecture
    Seip, Kristian. (2018) Extreme values of the Riemann zeta function and its argument. Institut Mittag-Leffler Analysis of operators on function spaces: A conference dedicated to the mathematics of Serguei Shimorin , Institut Mittag-Leffler 2018-06-04 - 2018-06-05
  • Academic lecture
    Seip, Kristian. (2018) Extreme values of the Riemann zeta function and its argument. Steklov Mathematical Institute of Russian Academy of Science International Conference on Complex Analysis Dedicated to the memory of Andrei Gonchar and Anatoliy Vitushkin , Moskva 2018-10-08 - 2018-10-09
  • Popular scientific lecture
    Seip, Kristian. (2018) Some milestones in the search for patterns in the primes. NTNU Matematikkdøgnet , NTNU, Trondheim 2018-03-12 - 2018-03-12
  • Popular scientific lecture
    Seip, Kristian. (2018) Yves Meyer -- the 2017 Abel Laureate. NTNU Forum for matematiske perler , Institutt for matematiske fag, NTNU, Trondheim 2018-01-27 - 2018-01-27
  • Academic lecture
    Seip, Kristian. (2018) Hardy and BMO spaces of Dirichlet series. University College Dublin International Conference on Complex Analysis, Potential Theory and Applications, in honour of Professor Stephen J Gardiner on the occassion of his 60th Birthday , University College Dublin 2018-06-11 - 2018-06-15
  • Academic lecture
    Seip, Kristian. (2018) Hardy spaces of Dirichlet series and the Riemann zeta function. Banach Center, Institute of Mathematics, PAS 6th Spring School of Analysis in Memory of Aleksander Pelczynski , Bedlewo 2018-04-04 - 2018-04-08

2017

  • Academic lecture
    Seip, Kristian. (2017) Interaction between number theory and analysis for Dirichlet series. Institute of Mathematics, Polish Academy of Sciences Lecture Course, Simons Semester "Emergent trends in complex analysis and functional analysis" , Warszawa 2017-06-05 - 2017-06-08
  • Academic lecture
    Seip, Kristian. (2017) A Survey on Analysis for Dirichlet Series. Control of Distributed Parameter Systems , Bordeaux 2017-07-03 - 2017-07-07
  • Academic lecture
    Seip, Kristian. (2017) Analysis for Dirichlet Series and the Riemann Zeta Function. Computational Methods and Function Theory , Lublin 2017-07-10 - 2017-07-15
  • Academic lecture
    Seip, Kristian. (2017) On the growth of the Riemann zeta function and its argument. University of Reading Distinguished Colloquium , Reading 2017-12-06 - 2017-12-06
  • Popular scientific lecture
    Seip, Kristian. (2017) Some milestones in research on the distribution of the primes. Norsk matematisk forening Finale i Abelkonkurransen , Trondheim 2017-03-08 - 2017-03-08
  • Academic lecture
    Seip, Kristian. (2017) Hardy spaces of Dirichlet series and the Riemann zeta function. Universitat Polytecnica de Valencia Conference on Nonlinear Functional Analysis , Valencia 2017-10-17 - 2017-10-20
  • Popular scientific lecture
    Seip, Kristian. (2017) Yves Meyer - vinner av Abelprisen 2017. Norsk matematikkråd Norsk matematikkråd, årsmøte , Bodø 2017-09-28 - 2017-09-28
  • Popular scientific lecture
    Seip, Kristian. (2017) Om primtall, primtallstvillinger og primtallsgap. Realfagsstudenter ved NTNU Onsdagsseminar for realfagsstudenter , NTNU 2017-09-13 - 2017-09-13

2016

  • Academic lecture
    Seip, Kristian; Bondarenko, Andrii. (2016) Extreme values of the Riemann zeta function. Mathematisches Forschungsinstitut Oberwolfach Analytic Number Theory , Oberwolfach 2016-11-07 - 2016-11-11
  • Academic lecture
    Seip, Kristian. (2016) Hardy spaces of Dirichlet series and pseudomoments of the Riemann zeta function. Gjesteforelesning Universite Paris-Est Marne-la-Vallee 2016-12-08 - 2016-12-08
  • Academic lecture
    Seip, Kristian. (2016) Large GCD sums and extreme values of the Riemann zeta function. Institut Mittag-Leffler 27th Nordic Congress of Mathematicians , Stockholm 2016-03-16 - 2016-03-20
  • Academic lecture
    Seip, Kristian. (2016) On the growth of the Riemann zeta function. King's College London Colloquium King's College London , London 2016-10-21 - 2016-10-21
  • Academic lecture
    Seip, Kristian. (2016) Operator theory for Dirichlet series. King's College London Analysis seminar , London 2016-10-20 - 2016-10-20
  • Academic lecture
    Seip, Kristian. (2016) From Gál's theorem to extreme values of the Riemann zeta function. Banach Center Harmonic Analysis, Complex Analysis, Spectral Theory and All That, Conference in Honour of Sasha Volberg , Bedlewo 2016-08-01 - 2016-08-05
  • Academic lecture
    Seip, Kristian. (2016) Lower bounds for extreme values of the Riemann zeta function. European Mathematical Society 7th European Congress of Mathematics , Berlin 2016-07-18 - 2016-07-22
  • Academic lecture
    Seip, Kristian. (2016) Analysis for Dirichlet Series and Analytic Number Theory. Universite Lille Nord de France Minikurs , Lille 2016-06-24 - 2016-06-29
  • Academic lecture
    Seip, Kristian. (2016) Gál type GCD sums and extreme values of the Riemann zeta function. Universite de Paris Sud Analysis and Probability, Conference in Honour of Jean-Pierre Kahane , Orsay and Paris 2016-07-04 - 2016-07-07
  • Academic lecture
    Seip, Kristian. (2016) On the growth of the Riemann zeta function. University of Helsinki Colloquium University of Helsinki , Helsinki 2016-09-28 - 2016-09-28
  • Academic lecture
    Seip, Kristian. (2016) Gál type GCD sums and extreme values of the Riemann zeta function. Universite de Lorraine Number Theory Seminar , Nancy 2016-06-30 - 2016-06-30
  • Popular scientific lecture
    Seip, Kristian. (2016) Riemanns zeta-funksjon og Riemann-hypotesen. Nabla Foredrag i regi av linjeforeningen Nabla , Auditorium S4, NTNU Gløshaugen 2016-04-05 - 2016-04-05
  • Academic lecture
    Seip, Kristian. (2016) Gal type GCD sums and extreme values of the Riemann zeta function. University of Cambridge Number Theory Seminar , Cambridge 2016-03-01 - 2016-03-01

2015

  • Academic lecture
    Seip, Kristian. (2015) Operators on Hardy spaces of Dirichlet series. University of Helsinki Frontiers of Singular Integrals , Helsinki 2015-06-02 - 2015-06-05
  • Academic lecture
    Seip, Kristian. (2015) Hardy spaces of Dirichlet series and number theory. Universite de Lille Recent Trends in Operator Theory and Functional Analysis , Lille 2015-06-08 - 2015-06-12
  • Academic lecture
    Seip, Kristian. (2015) Multiplicative Hankel matrices. Institut Mittag-Leffler Completeness Problems, Carleson Measures and Spaces of Analytic Functions , Djursholm 2015-06-29 - 2015-07-03
  • Academic lecture
    Seip, Kristian. (2015) Large GCD sums and extreme values of the Riemann zeta function. The Institute of Mathematical Sciences A Conference in Number Theory Celebrating the 65th Birthday of R. Balasubramanian , Chennai 2015-12-14 - 2015-12-18
  • Academic lecture
    Seip, Kristian. (2015) Multiplicative Hankel matrices. Universidad Autonoma de Madrid Colloquium Talk , Madrid 2015-02-27 - 2015-02-27

2014

  • Academic lecture
    Seip, Kristian. (2014) Poisson integrals on polydiscs. Chebyshev Laboratory Complex Analysis and Related Topics , St. Petersburg 2014-04-14 - 2014-04-18
  • Academic lecture
    Seip, Kristian. (2014) An inequality of Hardy-Littlewood type for Dirichlet polynomials. Vrije University IWOTA , Amsterdam 2014-07-14 - 2014-07-18
  • Academic lecture
    Seip, Kristian. (2014) Dirichlet Series and Analysis on Polydiscs. Universidad Autonoma de Madrid Minicourse Postgraduate Excellence Program , Madrid 2014-07-03 - 2014-07-10
  • Academic lecture
    Seip, Kristian. (2014) Hankel and composition operators on spaces of Dirichlet series. CIRM Function Spaces and Harmonic Analysis , Luminy, Marseille 2014-10-27 - 2014-10-31
  • Academic lecture
    Seip, Kristian. (2014) Additive og multiplikative Hankel-former. Norsk matematisk forening Ski og matematikk 2014 , Rondablikk høyfjellshotell 2014-01-02 - 2014-01-05

2013

  • Academic lecture
    Seip, Kristian. (2013) Polynomials on Polydiscs. Nordic Mathematical Societies, European Mathematical Society 26th Nordic and First European-Nordic Congress of Mathematics , Lund 2013-06-10 - 2013-06-13
  • Academic lecture
    Seip, Kristian. (2013) Analysis on Polydiscs. Universitetet i Oslo Kollokvium Universitetet i Oslo , Oslo 2013-06-19 - 2013-06-19
  • Academic lecture
    Seip, Kristian. (2013) Analysis on Polydiscs. KTH/Stockholm University Stockholm Mathematics Center Colloquium , Stockholm 2013-11-27 - 2013-11-27

2012

  • Academic lecture
    Seip, Kristian. (2012) Interpolation and sampling in small Bergman spaces. Analyseseminar NTNU 2012-02-27 - 2012-02-27
  • Academic lecture
    Seip, Kristian. (2012) Hankel forms and a conjecture of Helson. ESF project HCAA HCAA 2012 , Puerto de la Cruz, Tenerife 2012-03-05 - 2012-03-09
  • Academic lecture
    Seip, Kristian. (2012) Estimates for Dirichlet polynomials. CRM Barcelona/European Mathematical Society EMS Lectures 2012 , CRM Barcelona 2012-02-20 - 2012-02-23
  • Academic lecture
    Seip, Kristian. (2012) Function theory of Hardy spaces of Dirichlet series. Københavns universitet International Symposium on Orthogonal Polynomials and Special Functions -- a Complex Analytic Perspective , København 2012-06-11 - 2012-06-15
  • Academic lecture
    Seip, Kristian. (2012) GCD sums from Poisson integrals and systems of dilated functions. Centre for Advanced Study Operator related function theory and time frequency analysis , Norwegian Academy of Science and Letters, Oslo 2012-09-26 - 2012-09-26
  • Academic lecture
    Seip, Kristian. (2012) Boundary values and zeros of functions in Hilbert spaces of Dirichlet series; GCD sums from Poisson integrals and systems of dilated functions. European Mathematical Society EMS Lecturer 2012 , Tel Aviv University 2012-11-06 - 2012-11-08
  • Academic lecture
    Seip, Kristian. (2012) Analysis on polydiscs. University of Lund Colloquium University of Lund , Lund 2012-12-14 - 2012-12-14

2011

  • Academic lecture
    Seip, Kristian. (2011) Cyclicity of singular inner functions from the corona theorem. NTNU NTNU Analysis Seminar , Trondheim 2011-02-14 - 2011-02-14
  • Academic lecture
    Seip, Kristian. (2011) Hardy spaces of Dirichlet series and function theory on polydiscs. KAWA 2 - Winterschool in Complex Analysis and Geometry , CIRM, Luminy 2011-01-31 - 2011-02-05
  • Academic lecture
    Seip, Kristian. (2011) Hankel forms and estimates for Dirichlet polynomials. International Workshop on Operator Theory and Applications (IWOTA) 22 2011-07-04 - 2011-07-08
  • Academic lecture
    Seip, Kristian. (2011) The Bohnenblust-Hille inequality for homogeneous polynomials. University of Copenhagen Holomorphic Day , København 2011-04-15 - 2011-04-15
  • Academic lecture
    Seip, Kristian. (2011) Hankel forms and a conjecture of Helson. Universite Bordeaux 1 Recent Trends in Analysis in Honor of Nikolai Nikolski , Bordeaux 2011-08-31 - 2011-09-03
  • Academic lecture
    Seip, Kristian. (2011) Hankel forms and a conjecture of Helson. NTNU Analyseseminar NTNU , Trondheim 2011-09-19 - 2011-09-19

2010

  • Popular scientific lecture
    Seip, Kristian. (2010) The Abel Prize - A Century-Old Dream That Came True. United Arab Emirates University (UAEU) Guest Lecture UAEU , Al Ain 2010-10-05 -
  • Academic lecture
    Seip, Kristian. (2010) Estimates for Dirichlet polynomials. United Arab Emirates University (UAEU) Mini course (4 lectures) , Al Ain 2010-10-04 - 2010-10-07
  • Academic lecture
    Seip, Kristian. (2010) Hankel operators and the Bergman metric for Fock spaces. Universite de Lyon Workshop in Operator Theory and Complex Analysis , Lyon 2010-11-29 - 2010-11-30
  • Academic lecture
    Seip, Kristian. (2010) Discrete Hilbert transforms and systems of reproducing kernels. Universitat de Valencia/Politecnica Valencia Functional Analysis Valencia 2010 , Valencia 2010-06-07 - 2010-06-11
  • Academic lecture
    Seip, Kristian. (2010) Introduction about the Abel Prize. Kungliga Vetenskapsakademien Symposium for John Torrence Tate , Stockholm 2010-05-31 - 2010-05-31
  • Academic lecture
    Seip, Kristian. (2010) Bounded analytic functions on the infinite polydisc. 14th Nordan conference in Complex Analysis and Geometry , Gøteborg 2010-05-07 - 2010-05-09
  • Academic lecture
    Seip, Kristian. (2010) L^∞ to L^p constants for Riesz projections. Universite de Provence Analyseseminar , Marseille 2010-06-25 - 2010-06-25
  • Academic lecture
    Seip, Kristian. (2010) Discrete Hilbert transforms and systems of reproducing kernels. Universite de Bordeaux I Journees d'Analyse , Bordeaux 2010-09-27 - 2010-09-29

2009

  • Academic lecture
    Seip, Kristian. (2009) Why Bohr got interested in his radius and what it has led to. Universidad Autonoma de Madrid Kollokvium , Madrid 2009-12-11 - 2009-12-11
  • Academic lecture
    Seip, Kristian. (2009) Unitary discrete Hilbert transforms. Universite de Provence Analysis seminar , Marseille 2009-10-12 - 2009-10-12
  • Academic lecture
    Seip, Kristian. (2009) Unitary discrete Hilbert transforms. Universitetet i Bergen International Workshop on Complex Analysis dedicated to the 65th anniversary of Professor Arne Stray 2009-11-30 - 2009-12-02
  • Academic lecture
    Seip, Kristian. (2009) Hardy spaces of Dirichlet series. Universite de Metz Analysis seminar , Metz 2009-01-23 - 2009-01-23
  • Academic lecture
    Seip, Kristian. (2009) Hardy spaces of Dirichlet series and function theory in polydiscs. NTNU/Universitetet i Bergen Norwegian Fall School on Analysis , Steinkjer 2009-09-10 - 2009-09-13
  • Academic lecture
    Seip, Kristian. (2009) The Feichtinger conjecture in model subspaces of H^2. Strobl 09 Conference on Time-Frequency 2009-06-15 - 2009-06-20
  • Academic lecture
    Seip, Kristian. (2009) The Bohnenblust-Hille inequality for homogeneous polynomials is hypercontractive. Universite de Provence Analysis seminar , Marseille 2009-07-02 - 2009-07-02
  • Academic lecture
    Seip, Kristian. (2009) Bounded analytic functions in infinite polydiscs. Fields Institute Workshop on multivariable operator theory , Toronto 2009-08-10 - 2009-08-14
  • Popular scientific lecture
    Seip, Kristian. (2009) The Abel Prize - a century old dream that came true. Universite de Metz Colloquium Talk , Metz 2009-01-22 - 2009-01-22

2005

  • Academic lecture
    Seip, Kristian. (2005) Extremal Functions. Universidad Autonoma de Madrid Recent Advances in Operator-Related Function Theory, II , El Escorial 2005-10-06 - 2005-10-08

2004

  • Academic lecture
    Seip, Kristian. (2004) Surjective Toeplitz operators. University of Newcastle IWOTA - International Workshop on Operator Theory and Applications , Newcastle upon Tyne 2004-07-12 - 2004-12-16
  • Academic lecture
    Seip, Kristian. (2004) Interpolation and Sampling. University of Granada 2nd International Course of Mathematical Analysis in Andalucia , Granada 2004-09-20 - 2004-09-24

2003

  • Academic lecture
    Seip, Kristian. (2003) Harmonic measure on Swiss cheeses with uniformly spaced holes. First Joint Meeting RSME-AMS, Special Session on Banach Spaces of Analytic Functions , Sevilla, Spain 2003-06-21 -
  • Academic lecture
    Seip, Kristian. (2003) The constant of interpolation. Third Conference of the European Research Network "Analysis and Operators" , Adeje, Tenerife, Spain 2003-05-26 -
  • Academic lecture
    Seip, Kristian. (2003) Extremal functions. Colloquium, State University of New York at Albany Colloquium Lecture , Albany, New York, USA 2003-03-28 - 2003-03-28
  • Academic lecture
    Seip, Kristian. (2003) Interpolation and sampling in the unit disk. Six Seminar Lectures, University of Michigan, Ann Arbor , Ann Arbor, Michigan, USA 2003-03-25 -
  • Academic lecture
    Seip, Kristian. (2003) Extremal functions as divisors for kernels of Toeplitz operators. Analysis Seminar, Michigan State University, East Lansing Analysis Seminar , East Lansing, Michigan, USA 2003-03-19 -
  • Academic lecture
    Seip, Kristian. (2003) Interpolation problems in Spaces of Analytic Functions. Colloquium, University of Toledo , University of Toledo, Ohio, USA 2003-03-21 -

2002

  • Academic lecture
    Seip, Kristian. (2002) Sampling, interpolation, and Toeplitz operators. Finnish Mathematical days. , Joensuu, Finland 2002-01-08 -
  • Academic lecture
    Seip, Kristian. (2002) Extremal functions as contractive or expansive divisors for kernels of Toeplitz operators. Seminar Talk, University of Helsinki. , Helsinki, Finland 2002-01-02 -
  • Academic lecture
    Seip, Kristian. (2002) Extremal functions as divisors for kernels of Toeplitz operators. NORDAN 2002, Nordic Complex Analysis Meeting , Reykjavik 2002-03-10 -
  • Academic lecture
    Seip, Kristian. (2002) Kernels of Toeplitz operators via extremal functions. Seminarium i analys og dynamiska system Seminar Lecture , Kungliga tekniska høgskolan, Stockholm 2002-04-03 - 2002-04-03
  • Academic lecture
    Seip, Kristian. (2002) Recent encounters with Toeplitz operators and coinvariant subspaces. Abel Bicentennial Conference 2002 , Universitetet i Oslo 2002-06-07 -
  • Academic lecture
    Seip, Kristian. (2002) Sampling, interpolation, and Toeplitz operators. Congreso RSME 2002, Real Sociedad Matematica Espanola , Puerto de la Cruz, Tenerife 2002-02-01 -

2001

  • Academic lecture
    Seip, Kristian. (2001) The Carleson condition and interpolation in Holomorphic spaces. Universite Bordeaux I , Bordeaux 2001-07-05 -

2000

  • Academic lecture
    Seip, Kristian. (2000) Frames of complex exponentials and problems of norm equivalence for Hilbert spaces of entire functions. International Workshop on Operator Theory and Its Applications , Université Bordeaux, 13.-16. juni 2000
  • Academic lecture
    Seip, Kristian. (2000) Analysis at the Nyquist rate. Functional Analysis Valencia 2000 , Valencia, 3.-7. juli 2000
  • Academic lecture
    Seip, Kristian. (2000) Frames and Riesz bases of reproducing kernels in holomorphic spaces. Rajchman - Zygmund - Marcinkiewicz Symposium , Bedlewo, Poland, 15.-21. October 2000.
  • Academic lecture
    Seip, Kristian. (2000) Fourier frames. , Chalmers tekniska högskola og Göteborgs universitet, 7. desember 2000

1999

  • Academic lecture
    Seip, Kristian. (1999) Nonharmonic Fourier Series and Some Harmonic Connections. Gelbart memorial Lectures , Bar-Ilan University, Ramat Gan, Israel, 22.11.1999
  • Academic lecture
    Seip, Kristian. (1999) Multipliers for entire functions and an interpolation problem of Beurling. Gelbart memorial Lectures , Bar-Ilan University, Ramat Gan, Israel, 21.11.1999
  • Academic lecture
    Seip, Kristian. (1999) Sampling sequences. SampTA'99 , Loen, Norge
  • Academic lecture
    Seip, Kristian. (1999) Sampling sequences. SampTA'99 , Loen, Norge
  • Academic lecture
    Seip, Kristian. (1999) Weighted Paley-Wiener Spaces. Analysis Seminar , University of Barcelona
  • Academic lecture
    Seip, Kristian. (1999) Equivalent norms for the Paley-Wiener space. Functional Analysis and related topics , Helsinki
  • Academic lecture
    Seip, Kristian. (1999) Weighted Paley-Wiener Spaces. Analysis Seminar , University of Barcelona

1998

  • Popular scientific lecture
    Seip, Kristian. (1998) The weights of weighted Paley-Wiener spaces. , Imperial College
  • Academic lecture
    Seip, Kristian. (1998) Developments from nonharmonic Fourier series. International Congress of Mathematicians , Berlin

1997

  • Academic lecture
    Seip, Kristian. (1997) On some interpolation problems for entire functions and the Hunt-Muckenhoupt-Wheeden theorem. Complex Analysis and Differential Equations , Uppsala
  • Popular scientific lecture
    Seip, Kristian. (1997) Sampling and interpolation in some holomorphic spaces. , University College, Cork
  • Popular scientific lecture
    Seip, Kristian. (1997) Funksjonsteori i Bergman-rom. Ski og matematikk , Gausdal
  • Popular scientific lecture
    Seip, Kristian. (1997) Beurling-type density theorems for weighted LP spaces of entire functions. Entire functions in modern analysis , Tel Aviv

1995

  • Popular scientific lecture
    Seip, Kristian. (1995) Interpolating sequences and invariant subspaces of infinite index in Bergman spaces. , [Mangler data]
  • Popular scientific lecture
    Seip, Kristian. (1995) Completeness and basicity of @(_f(nx)@) in L%2(0,1). , [Mangler data]
  • Popular scientific lecture
    Seip, Kristian. (1995) A new application of Dirichlet series. Matematisk felleskollokvium , [Mangler data]
  • Popular scientific lecture
    Seip, Kristian. (1995) Frames and bases of complex exponentials. , [Mangler data]
  • Popular scientific lecture
    Seip, Kristian. (1995) A Hilbert space of Dirichlet series and systems of dilated functions in L2(0,1). Linear Problems in Analysis , [Mangler data]
  • Popular scientific lecture
    Seip, Kristian. (1995) Sampling and interpolation in spaces of holomorphic functions. , [Mangler data]

1994

  • Popular scientific lecture
    Seip, Kristian. (1994) Extensions of the Blaschke condition. 3rd Analysis Symposium , Bern 1994-07-10 - 1994-07-14
  • Popular scientific lecture
    Seip, Kristian. (1994) Growth and zeros of functions in Bergman space. AMS Summer Research Conference "Bergman Spaces and the Operators That Act on Them" , [Mangler data]

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