Former doctoral student in the working group of Prof. Moritz Kaßmann.
Since September 2022 I am working at Universitat de Barcelona. (new webpage)

E-Mail: mweidner@ub.edu.de

homepage – arXiv – ResearchGate – Google Scholar – ORCID

partial differential equations, regularity theory, nonlocal operators, free boundary problems

• M. Kassmann, M. Weidner. Nonlocal operators related to nonsymmetric forms II: Harnack inequalities, 2022

• M. Kassmann, M. Weidner. Nonlocal operators related to nonsymmetric forms I: Hölder estimates, 2022

• J. Chaker, M. Kassmann, M. Weidner. Robust Hölder Estimates for Parabolic Nonlocal Operators, 2019

• J. Chaker, M. Kim, M. Weidner. Concentration-compactness for the nonlocal anisotropic p-Laplacian of mixed order,
  Nonlinear Analysis. To appear: July 2023

• M. Weidner. Markov chain approximations for nonsymmetric processes,
  Stochastic Processes and their Applications. Published online: 14 January 2023

• M. Kassmann, M. Weidner. Upper heat kernel estimates for nonlocal operators via Aronson's method,
  Calculus of Variations and Partial Differential Equations. Published online: 07 January 2023

• J. Chaker, M. Kim, M. Weidner. Regularity for nonlocal problems with non-standard growth,
  Calculus of Variations and Partial Differential Equations. Published online: 14 October 2022

• J. Chaker, M. Kim, M. Weidner. Harnack inequality for nonlocal problems with non-standard growth,
  Mathematische Annalen. Published online: 06 May 2022

Energy methods for nonsymmetric nonlocal operators, 2022

• Contributed Talk: Regularity for nonlocal problems with nonstandard growth (Warsaw - Nonuniformly elliptic problems, Sep 2022)

• Talk: Regularity estimates for nonlocal operators related to nonsymmetric forms (Madrid - Workshop: Regularity for nonlinear diffusion equations, June 2022)

• Talk: Regularity estimates for nonlocal operators related to nonsymmetric forms (Ninth Bielefeld-SNU joint Workshop in Mathematics, May 2022)

• Contributed talk: Regularity for nonlocal problems with nonstandard growth (Warsaw - School on nonlinear PDEs, May 2022)

• Talk: Regularity estimates for nonlocal operators related to nonsymmetric energy forms (Oberwolfach - MFO-RIMS Tandem Workshop: Nonlocality in Analysis, Probability and Statistics, Mar 2022)

• Contributed Talk: Regularity estimates for nonlocal operators related to nonsymmetric energy forms (Bielefeld - Nonlocal Equations: Analysis and Numerics, Feb 2022)

• Talk: Heat kernel estimates for nonlocal operators (Ilsenburg, Germany – IRTG Retreat 2021, Oct 2021)

• Talk: Harnack inequalities for nonsymmetric nonlocal operators in divergence form (KIAS Seoul - Analysis, PDE & Probability Seminar, May 2021)

• Contributed talk: Hölder estimates for parabolic nonlocal operators (Bielefeld - Eighth Bielefeld-SNU joint Workshop in Mathematics, Feb 2020)

• Contributed talk: Regularity of parabolic nonlocal operators (Oberwolfach - Heat Kernels, Stochastic Processes and Functional Inequalities, Nov 2019)