Homogenization for Maxwell and Friends

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Andreas Buchinger - , Technische Universität Bergakademie Freiberg (Autor:in)
  • Sebastian Franz - , Institut für Wissenschaftliches Rechnen (Autor:in)
  • Nathanael Skrepek - , University of Twente (Autor:in)
  • Marcus Waurick - , Technische Universität Bergakademie Freiberg (Autor:in)

Abstract

We refine the understanding of continuous dependence on coefficients of solution operators under the nonlocal H-topology viz Schur topology in the setting of evolutionary equations in the sense of Picard. We show that certain components of the solution operators converge strongly. The weak convergence behavior known from homogenization problems for ordinary differential equations is recovered on the other solution operator components. The results are underpinned by a rich class of examples that, in turn, are also treated numerically, suggesting a certain sharpness of the theoretical findings. Analytic treatment of an example that proves this sharpness is also provided. Even though all the considered examples contain local coefficients, the main theorems and structural insights are of operator-theoretic nature and, thus, also applicable to nonlocal coefficients. The main advantage of the problem class considered is that they contain mixtures of type, potentially highly oscillating between different types of PDEs; a prototype can be found in Maxwell's equations highly oscillating between the classical equations and corresponding eddy current approximations.

Details

OriginalspracheEnglisch
Seiten (von - bis)1665 - 1695
Seitenumfang31
FachzeitschriftMultiscale modeling & simulation
Jahrgang23
Ausgabenummer4
PublikationsstatusVeröffentlicht - 31 Dez. 2025
Peer-Review-StatusJa

Externe IDs

unpaywall 10.1137/24m169271x
Scopus 105024208820

Schlagworte