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John Erik Fornæss

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John Erik Fornæss

Professor Emeritus

john.fornass@ntnu.no
+4773593522 Sentralbygg 2, 932, Gløshaugen, Alfred Getz vei 1
About Publications

About

John Erik Fornæss (1946) has been a Professor at the Department of Mathematical Sciences since 2012, and belongs to the Analysis Research Group.

Professor Fornæss has a Master degree in Mathematics from the University of Oslo, and a PhD in Mathematics from the University of Washington, USA.

He has previously held positions as a Professor at the Princeton University and later, the University of Michigan.

Fellowships and awards

  •  NSF grants 1974-2015
  • Sloan Fellowship 1978
  • ICM, Invited speaker, 1982
  • Humboldt Fellowship
  • Stefan Bergman Prize, 1994
  • Member of Royal Norwegian Society of Sciences and Letters 2012-
  • Member of The Norwegian Academy of Science and Letters 2013-

Commissions of trust

  • Member, NSF panels
  • Member, Journal Editorial Boards

Memberships of scientific societies

  • American Mathematical Society
  • European Mathematical Society
  • Norwegian Mathematical Society

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2025

  • Chen, Bo-Yong; Fornæss, John Erik; Wu, Jujie. (2025) Density in weighted Bergman spaces and Bergman completeness of Hartogs domains. Mathematische Annalen
    Academic article
  • Fornæss, John Erik; Pal, Ratna. (2025) Increasing sequences of complex manifolds with uniform squeezing constants and their Bergman spaces. Mathematische Annalen
    Academic article

2024

  • Fornæss, John Erik; Hu, Mi; Truong, Trung Tuyen; Watanabe, Takayuki. (2024) Backtracking New Q-Newton’s Method, Newton’s Flow, Voronoi’s Diagram and Stochastic Root Finding. Complex Analysis and Operator Theory
    Academic article

2023

  • Fornæss, John Erik. (2023) Henkin–Ramirez kernels. Boletín de la Sociedad Matemática Mexicana
    Academic article

2022

  • Fornæss, John Erik; Pal, Ratna. (2022) Notes on the Short C<sup>k</sup> ’s. Journal of Geometric Analysis
    Academic article
  • Arosio, Leandro; Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2022) Dynamics of transcendental Hénon maps-II. Mathematische Annalen
    Academic article

2021

  • Fornæss, John Erik; Nikolov, Nikolai. (2021) Strong localization of invariant metrics. Mathematische Annalen
    Academic article
  • Arosio, Leandro; Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2021) Dynamics of transcendental hÉnon maps III: Infinite entropy. Journal of Modern Dynamics
    Academic article
  • Fornæss, John Erik; Rong, Feng. (2021) The boundary rigidity for holomorphic self-maps of some fibered domains. Mathematical Research Letters
    Academic article
  • Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2021) Entropy of transcendental entire functions. Ergodic Theory and Dynamical Systems
    Academic article

2020

  • Fornæss, John Erik; Thu, Ninh Van. (2020) A note on pseudoconvex hypersurfaces of infinite type in Cn. Proceedings of the American Mathematical Society
    Academic article
  • Fornæss, John Erik; Rong, Feng. (2020) On the boundary rigidity at strongly pseudoconvex points. Mathematische Zeitschrift
    Academic article
  • Biard, Séverine; Fornæss, John Erik; Wu, Jujie. (2020) Weighted L2 Version of Mergelyan and Carleman Approximation. Journal of Geometric Analysis
    Academic article
  • Arosio, Leandro; Fornæss, John Erik; Shcherbina, Nikolay; Wold, Erlend Fornæss. (2020) Squeezing functions and Cantor sets. Annali della Scuola Normale Superiore di Pisa (Classe Scienze), Serie V
    Academic article
  • Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2020) Infinite Entropy for Transcendental Entire Functions with an Omitted Value. Acta Mathematica Vietnamica
    Academic article
  • Biard, Séverine; Fornæss, John Erik; Wu, Jujie. (2020) Weighted-L2 polynomial approximation in C. Transactions of the American Mathematical Society
    Academic article

2019

  • Fornæss, John Erik; Wold, Erlend Fornæss. (2019) An embedding of the unit ball that does not embed into a Loewner chain. Mathematische Zeitschrift
    Academic article
  • Fornæss, John Erik; Wu, Jujie. (2019) Weighted approximation in C. Mathematische Zeitschrift
    Academic article
  • Deng, Fusheng; Fornæss, John Erik. (2019) Flat Bundles Over Some Compact Complex Manifolds. Journal of Geometric Analysis
    Academic article
  • Biard, Severine; Fornæss, John Erik; Wu, Jujie. (2019) Weighted-L² polynomial approximation in C. Transactions of the American Mathematical Society
    Academic article
  • Arosio, Leandro; Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2019) Dynamics of transcendental Henon maps. Mathematische Annalen
    Academic article

2018

  • Fornæss, John Erik; Wold, Erlend Fornæss. (2018) A non-strictly pseudoconvex domain for which the squeezing function tends to 1 towards the boundary. Pacific Journal of Mathematics
    Academic article
  • Bracci, Filippo; Fornæss, John Erik; Wold, Erlend Fornæss. (2018) Comparison of invariant metrics and distances on strongly pseudoconvex domains and worm domains. Mathematische Zeitschrift
    Academic article
  • Fornæss, John Erik; Rong, Feng. (2018) Estimate of the squeezing function for a class of bounded domains. Mathematische Annalen
    Academic article
  • Diederich, K; Fornæss, John Erik. (2018) Boundary behavior of the Bergman metric. Asian Journal of Mathematics
    Academic article
  • Fornæss, John Erik; Shcherbina, Nikolay. (2018) A Domain with Non-plurisubharmonic Squeezing Function. Journal of Geometric Analysis
    Academic article
  • Deng, Fusheng; Fornæss, John Erik; Wold, Erlend Fornæss. (2018) Exposing boundary points of strongly pseudoconvex subvarieties in complex spaces. Proceedings of the American Mathematical Society
    Academic article

2017

  • Fornæss, John Erik; Wu, Jujie. (2017) A Global Approximation Result by Bert Alan Taylor and the Strong Openness Conjecture in Cn. Journal of Geometric Analysis
    Academic article
  • Fornæss, John Erik; Peters, Han. (2017) Complex dynamics with focus on the real part. Ergodic Theory and Dynamical Systems
    Academic article
  • Fornæss, John Erik; Forstneric̆, Franc. (2017) Preface. International Journal of Mathematics
    Editorial

2016

  • Diederich, Klas; Fornæss, John Erik; Wold, Erlend Fornæss. (2016) A characterization of the ball in Cn. International Journal of Mathematics
    Academic article
  • Fornæss, John Erik. (2016) On a conjecture by Blocki and Zwonek. Science China Mathematics
    Academic article
  • Fornæss, John Erik; Wold, Erlend Fornæss. (2016) Non-autonomous basins with uniform bounds are elliptic. Proceedings of the American Mathematical Society
    Academic article

2015

  • Fornæss, John Erik; Irgens, Marius; Wold, Erlend Fornæss. (2015) Complex Geometry and Dynamics. Springer Springer
    Academic anthology/Conference proceedings
  • Fornæss, John Erik; Wold, Erlend Fornæss. (2015) An estimate for the squeezing function and estimates of invariant metrics. Springer Proceedings in Mathematics & Statistics
    Academic article
  • Boc-Thaler, Luka; Fornæss, John Erik; Peters, Han. (2015) Fatou components with punctured limit sets. Ergodic Theory and Dynamical Systems
    Academic article
  • Fornæss, John Erik; Kim, Kang-Tae. (2015) Some problems. Springer Proceedings in Mathematics & Statistics
    Academic article

2014

  • Bracci, Filippo; Fornæss, John Erik. (2014) The range of holomorphic maps at boundary points. Mathematische Annalen
    Academic article
  • Klas, Diederich; Fornæss, John Erik; Wold, Erlend Fornæss. (2014) Exposing Points on the Boundary of a Strictly Pseudoconvex or a Locally Convexifiable Domain of Finite 1-Type. Journal of Geometric Analysis
    Academic article
  • Fornæss, John Erik; Rong, Feng. (2014) Classification of recurrent domains for holomorphic maps on complex projective spaces. Journal of Geometric Analysis
    Academic article
  • Fornæss, John Erik; Lee, Lina; Zhang, Yuan. (2014) Formal complex curves in real smooth hypersurfaces. Illinois Journal of Mathematics
    Academic article

2013

  • Fornæss, John Erik; Sibony, Nessim; Wold, Erlend Fornæss. (2013) Q-Complete domains with corners in P-n and extension of line bundles. Mathematische Zeitschrift
    Academic article
  • Fornæss, John Erik; Mihailescu, Eugen. (2013) Equilibrium measures in saddle sets of holomorphic maps on P^2. Mathematische Annalen
    Academic article

2012

  • Fornæss, John Erik; Stensønes, Berit. (2012) Infinite type germs of real analytic pseudoconvex domains in C^3. Complex Variables and Elliptic Equations
    Academic article

2011

  • Fornæss, John Erik; Wold Fornæss, Erlend. (2011) Examples of minimal laminations and associated currents. Mathematische Zeitschrift
    Academic article
  • Fornæss, John Erik; Lee, Line; Zhang, Yuan. (2011) On Supnorm Estimates for ∂ on Infinite Type Convex Domains in C^2. Journal of Geometric Analysis
    Academic article

1993

  • Fornæss, John Erik. (1993) Several Complex Variables: Proceedings of the Mittag-Leffler Institute, 1987-1988. Princeton University Press Princeton University Press
    Academic anthology/Conference proceedings

Journal publications

  • Chen, Bo-Yong; Fornæss, John Erik; Wu, Jujie. (2025) Density in weighted Bergman spaces and Bergman completeness of Hartogs domains. Mathematische Annalen
    Academic article
  • Fornæss, John Erik; Pal, Ratna. (2025) Increasing sequences of complex manifolds with uniform squeezing constants and their Bergman spaces. Mathematische Annalen
    Academic article
  • Fornæss, John Erik; Hu, Mi; Truong, Trung Tuyen; Watanabe, Takayuki. (2024) Backtracking New Q-Newton’s Method, Newton’s Flow, Voronoi’s Diagram and Stochastic Root Finding. Complex Analysis and Operator Theory
    Academic article
  • Fornæss, John Erik. (2023) Henkin–Ramirez kernels. Boletín de la Sociedad Matemática Mexicana
    Academic article
  • Fornæss, John Erik; Pal, Ratna. (2022) Notes on the Short C<sup>k</sup> ’s. Journal of Geometric Analysis
    Academic article
  • Arosio, Leandro; Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2022) Dynamics of transcendental Hénon maps-II. Mathematische Annalen
    Academic article
  • Fornæss, John Erik; Nikolov, Nikolai. (2021) Strong localization of invariant metrics. Mathematische Annalen
    Academic article
  • Arosio, Leandro; Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2021) Dynamics of transcendental hÉnon maps III: Infinite entropy. Journal of Modern Dynamics
    Academic article
  • Fornæss, John Erik; Rong, Feng. (2021) The boundary rigidity for holomorphic self-maps of some fibered domains. Mathematical Research Letters
    Academic article
  • Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2021) Entropy of transcendental entire functions. Ergodic Theory and Dynamical Systems
    Academic article
  • Fornæss, John Erik; Thu, Ninh Van. (2020) A note on pseudoconvex hypersurfaces of infinite type in Cn. Proceedings of the American Mathematical Society
    Academic article
  • Fornæss, John Erik; Rong, Feng. (2020) On the boundary rigidity at strongly pseudoconvex points. Mathematische Zeitschrift
    Academic article
  • Biard, Séverine; Fornæss, John Erik; Wu, Jujie. (2020) Weighted L2 Version of Mergelyan and Carleman Approximation. Journal of Geometric Analysis
    Academic article
  • Arosio, Leandro; Fornæss, John Erik; Shcherbina, Nikolay; Wold, Erlend Fornæss. (2020) Squeezing functions and Cantor sets. Annali della Scuola Normale Superiore di Pisa (Classe Scienze), Serie V
    Academic article
  • Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2020) Infinite Entropy for Transcendental Entire Functions with an Omitted Value. Acta Mathematica Vietnamica
    Academic article
  • Biard, Séverine; Fornæss, John Erik; Wu, Jujie. (2020) Weighted-L2 polynomial approximation in C. Transactions of the American Mathematical Society
    Academic article
  • Fornæss, John Erik; Wold, Erlend Fornæss. (2019) An embedding of the unit ball that does not embed into a Loewner chain. Mathematische Zeitschrift
    Academic article
  • Fornæss, John Erik; Wu, Jujie. (2019) Weighted approximation in C. Mathematische Zeitschrift
    Academic article
  • Deng, Fusheng; Fornæss, John Erik. (2019) Flat Bundles Over Some Compact Complex Manifolds. Journal of Geometric Analysis
    Academic article
  • Biard, Severine; Fornæss, John Erik; Wu, Jujie. (2019) Weighted-L² polynomial approximation in C. Transactions of the American Mathematical Society
    Academic article
  • Arosio, Leandro; Benini, Anna Miriam; Fornæss, John Erik; Peters, Han. (2019) Dynamics of transcendental Henon maps. Mathematische Annalen
    Academic article
  • Fornæss, John Erik; Wold, Erlend Fornæss. (2018) A non-strictly pseudoconvex domain for which the squeezing function tends to 1 towards the boundary. Pacific Journal of Mathematics
    Academic article
  • Bracci, Filippo; Fornæss, John Erik; Wold, Erlend Fornæss. (2018) Comparison of invariant metrics and distances on strongly pseudoconvex domains and worm domains. Mathematische Zeitschrift
    Academic article
  • Fornæss, John Erik; Rong, Feng. (2018) Estimate of the squeezing function for a class of bounded domains. Mathematische Annalen
    Academic article
  • Diederich, K; Fornæss, John Erik. (2018) Boundary behavior of the Bergman metric. Asian Journal of Mathematics
    Academic article
  • Fornæss, John Erik; Shcherbina, Nikolay. (2018) A Domain with Non-plurisubharmonic Squeezing Function. Journal of Geometric Analysis
    Academic article
  • Deng, Fusheng; Fornæss, John Erik; Wold, Erlend Fornæss. (2018) Exposing boundary points of strongly pseudoconvex subvarieties in complex spaces. Proceedings of the American Mathematical Society
    Academic article
  • Fornæss, John Erik; Wu, Jujie. (2017) A Global Approximation Result by Bert Alan Taylor and the Strong Openness Conjecture in Cn. Journal of Geometric Analysis
    Academic article
  • Fornæss, John Erik; Peters, Han. (2017) Complex dynamics with focus on the real part. Ergodic Theory and Dynamical Systems
    Academic article
  • Fornæss, John Erik; Forstneric̆, Franc. (2017) Preface. International Journal of Mathematics
    Editorial
  • Diederich, Klas; Fornæss, John Erik; Wold, Erlend Fornæss. (2016) A characterization of the ball in Cn. International Journal of Mathematics
    Academic article
  • Fornæss, John Erik. (2016) On a conjecture by Blocki and Zwonek. Science China Mathematics
    Academic article
  • Fornæss, John Erik; Wold, Erlend Fornæss. (2016) Non-autonomous basins with uniform bounds are elliptic. Proceedings of the American Mathematical Society
    Academic article
  • Fornæss, John Erik; Wold, Erlend Fornæss. (2015) An estimate for the squeezing function and estimates of invariant metrics. Springer Proceedings in Mathematics & Statistics
    Academic article
  • Boc-Thaler, Luka; Fornæss, John Erik; Peters, Han. (2015) Fatou components with punctured limit sets. Ergodic Theory and Dynamical Systems
    Academic article
  • Fornæss, John Erik; Kim, Kang-Tae. (2015) Some problems. Springer Proceedings in Mathematics & Statistics
    Academic article
  • Bracci, Filippo; Fornæss, John Erik. (2014) The range of holomorphic maps at boundary points. Mathematische Annalen
    Academic article
  • Klas, Diederich; Fornæss, John Erik; Wold, Erlend Fornæss. (2014) Exposing Points on the Boundary of a Strictly Pseudoconvex or a Locally Convexifiable Domain of Finite 1-Type. Journal of Geometric Analysis
    Academic article
  • Fornæss, John Erik; Rong, Feng. (2014) Classification of recurrent domains for holomorphic maps on complex projective spaces. Journal of Geometric Analysis
    Academic article
  • Fornæss, John Erik; Lee, Lina; Zhang, Yuan. (2014) Formal complex curves in real smooth hypersurfaces. Illinois Journal of Mathematics
    Academic article
  • Fornæss, John Erik; Sibony, Nessim; Wold, Erlend Fornæss. (2013) Q-Complete domains with corners in P-n and extension of line bundles. Mathematische Zeitschrift
    Academic article
  • Fornæss, John Erik; Mihailescu, Eugen. (2013) Equilibrium measures in saddle sets of holomorphic maps on P^2. Mathematische Annalen
    Academic article
  • Fornæss, John Erik; Stensønes, Berit. (2012) Infinite type germs of real analytic pseudoconvex domains in C^3. Complex Variables and Elliptic Equations
    Academic article
  • Fornæss, John Erik; Wold Fornæss, Erlend. (2011) Examples of minimal laminations and associated currents. Mathematische Zeitschrift
    Academic article
  • Fornæss, John Erik; Lee, Line; Zhang, Yuan. (2011) On Supnorm Estimates for ∂ on Infinite Type Convex Domains in C^2. Journal of Geometric Analysis
    Academic article

Books

  • Fornæss, John Erik; Irgens, Marius; Wold, Erlend Fornæss. (2015) Complex Geometry and Dynamics. Springer Springer
    Academic anthology/Conference proceedings
  • Fornæss, John Erik. (1993) Several Complex Variables: Proceedings of the Mittag-Leffler Institute, 1987-1988. Princeton University Press Princeton University Press
    Academic anthology/Conference proceedings

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