Analysis of a hybridizable discontinuous Galerkin method for the Maxwell operator

Gang Chen, Jintao Cui, Liwei Xu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)

Abstract

In this paper, we study a hybridizable discontinuous Galerkin (HDG) method for the Maxwell operator. The only global unknowns are defined on the inter-element boundaries, and the numerical solutions are obtained by using discontinuous polynomial approximations. The error analysis is based on a mixed curl-curl formulation for the Maxwell equations. Theoretical results are obtained under a more general regularity requirement. In particular for the low regularity case, special treatment is applied to approximate data on the boundary. The HDG method is shown to be stable and convergence in an optimal order for both high and low regularity cases. Numerical experiments with both smooth and singular analytical solutions are performed to verify the theoretical results.

Original languageEnglish
Pages (from-to)301-324
Number of pages24
JournalESAIM: Mathematical Modelling and Numerical Analysis
Volume53
Issue number1
DOIs
Publication statusPublished - 15 Apr 2019

Keywords

  • HDG method
  • Low regularity
  • Maxwell equations

ASJC Scopus subject areas

  • Analysis
  • Numerical Analysis
  • Modelling and Simulation
  • Computational Mathematics
  • Applied Mathematics

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