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Johannes Sjöstrand

Johannes Sjöstrand

D-Index & Metrics

Mathematics

D-Index
54
Citations
12262
World Ranking
834
National Ranking
40

Research.com Recognitions

  • 2017 - Fellow of the American Academy of Arts and Sciences

Overview

Johannes Sjöstrand is affiliated with the University of Burgundy in France and specializes in the field of mathematics. Their research spans multiple subfields including mathematical physics, computational theory and mathematics, applied mathematics, statistical and nonlinear physics, and geometry and topology.

The main topics of Johannes Sjöstrand's work include:

  • Spectral Theory in Mathematical Physics
  • Numerical methods in inverse problems
  • Advanced Mathematical Modeling in Engineering
  • Holomorphic and Operator Theory
  • Advanced Algebra and Geometry
  • Quantum chaos and dynamical systems
  • Stability and Controllability of Differential Equations

Johannes Sjöstrand has published extensively, with a total of 42 publications in mathematics. The frequent venues for their work include:

  • arXiv (Cornell University)
  • Integral Equations and Operator Theory
  • Indagationes Mathematicae
  • Annales Henri Poincaré
  • Annales de l'institut Fourier

Their recent scientific papers reflect topics around operator theory, perturbations, and semigroup bounds. Selected recent publications include:

  • "Discussing Semigroup Bounds with Resolvent Estimates," 2024, Integral Equations and Operator Theory
  • "Improving Semigroup Bounds with Resolvent Estimates," 2021, Integral Equations and Operator Theory
  • "Toeplitz band matrices with small random perturbations," 2020, Indagationes Mathematicae
  • "General Toeplitz Matrices Subject to Gaussian Perturbations," 2020, Annales Henri Poincaré
  • "Semiclassical Gevrey operators in the complex domain," 2022, Annales de l'institut Fourier

Frequent collaborators include Bernard Helffer, Michael Hitrik, Nikola Stoilov, Martin Vogel, and Maher Zerzeri. These co-authors have contributed alongside Johannes Sjöstrand in varied research efforts, appearing in several joint publications.

Among awards, Johannes Sjöstrand was recognized as a Fellow of the American Academy of Arts and Sciences in 2017.

Best Publications

  • Spectral asymptotics in the semi-classical limit

    Mouez Dimassi;J. Sjöstrand

  • Multiple wells in the semi-classical limit I

    B. Helffer;J. Sjostrand

  • The Calderón problem with partial data

    Carlos E. Kenig;Johannes Sjöstrand;Gunther Uhlmann

  • Microlocal Analysis for Differential Operators: An Introduction

    Alain Grigis;Johannes Sjöstrand

  • Singularities of boundary value problems. I

    R. B. Melrose;J. Sjöstrand

  • Complex scaling and the distribution of scattering poles

    Johannes Sjöstrand;Maciej Zworski

  • Fourier integral operators with complex-valued phase functions

    Anders Melin;Johannes Sjöstrand

  • An algebra of pseudodifferential operators

    Johannes Sjöstrand

  • Résonances en limite semi-classique

    B. Helffer;J. Sjöstrand

  • Geometric bounds on the density of resonances for semiclassical problems

    Johannes Sjöstrand

  • Puits multiples en mecanique semi-classique iv etude du complexe de witten

    B. Helffer;J. Sjöstrand

  • Pseudospectra of semiclassical (pseudo-) differential operators

    Nils Dencker;Johannes Sjöstrand;Maciej Zworski

  • Determining a Magnetic Schrödinger Operator from Partial Cauchy Data

    David Dos Santos Ferreira;Carlos E. Kenig;Johannes Sjöstrand;Gunther Uhlmann

  • On the correlation for Kac-like models in the convex case

    Bernard Helffer;Johannes Sjöstrand

  • Upper Bound on the Density of Ruelle Resonances for Anosov Flows

    Frédéric Faure;Johannes Sjöstrand

  • A direct approach to Bergman kernel asymptotics for positive line bundles

    Robert J. Berman;Robert J. Berman;Bo Berndtsson;Bo Berndtsson;Johannes Sjöstrand

  • Semiclassical resonances generated by a closed trajectory of hyperbolic type

    C. Gérard;J. Sjöstrand

  • A Trace Formula and Review of Some Estimates for Resonances

    J. Sjöstrand;J. Sjöstrand

  • Fractal upper bounds on the density of semiclassical resonances

    Johannes Sjöstrand;Maciej Zworski

  • Analyse semi-classique pour l'équation de Harper (avec application à l'équation de Schrödinger avec champ magnétique)

    B. Helffer;J. Sjöstrand

  • The Calderón problem with partial data

    Johannes Sjöstrand

Frequent Co-Authors

Maciej Zworski
Maciej Zworski University of California, Berkeley
Bernard Helffer
Bernard Helffer University of Nantes
Gunther Uhlmann
Gunther Uhlmann University of Washington
Carlos E. Kenig
Carlos E. Kenig University of Chicago
Mats Andersson
Mats Andersson Flinders University
Masaki Kashiwara
Masaki Kashiwara Kyoto University

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