3 papers
math.NA2026
Optimal Time-Adaptivity for Parabolic Problems
Michael Feischl, Fernando HenrÃquez, David Niederkofler
Since the first optimality proofs for adaptive mesh refinement algorithms in the early 2000s, the theory of optimal mesh refinement for PDEs was inherently limited to stationary pr…
math.NA2025
Optimal adaptive implicit time stepping
Michael Feischl, David Niederkofler
We revisit adaptive time stepping, one of the classical topics of numerical analysis and computational engineering. While widely used in application and subject of many theoretical…
math.NA2025
Well-Posedness of Discretizations for Fractional Elasto-Plasticity
Michael Feischl, David Niederkofler, Barbara Wohlmuth
We consider a fractional plasticity model based on linear isotropic and kinematic hardening as well as a standard von-Mises yield function, where the flow rule is replaced by a Rie…