Homogenization for Maxwell and Friends

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Andreas Buchinger - , Freiberg University of Mining and Technology (Author)
  • Sebastian Franz - , Institute of Scientific Computing (Author)
  • Nathanael Skrepek - , University of Twente (Author)
  • Marcus Waurick - , Freiberg University of Mining and Technology (Author)

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

Original languageEnglish
Pages (from-to)1665 - 1695
Number of pages31
JournalMultiscale modeling & simulation
Volume23
Issue number4
Publication statusPublished - 31 Dec 2025
Peer-reviewedYes

External IDs

unpaywall 10.1137/24m169271x
Scopus 105024208820

Keywords