High-order finite elements in numerical electromagnetism: degrees of freedom and generators in duality

Marcella Bonazzoli, Francesca Rapetti

Research output: Contribution to journalArticlepeer-review

Abstract

Explicit generators for high-order (r>1) scalar and vector finite element spaces generally used in numerical electromagnetism are presented and classical degrees of freedom, the so-called moments, revisited. Properties of these generators on simplicial meshes are investigated, and a general technique to restore duality between moments and generators is proposed. Algebraic and exponential optimal h- and r-error rates are numerically validated for high-order edge elements on the problem of Maxwell’s eigenvalues in a square domain.

Original languageEnglish
Pages (from-to)111-136
Number of pages26
JournalNumerical Algorithms
Volume74
Issue number1
DOIs
Publication statusPublished - 1 Jan 2017
Externally publishedYes

Keywords

  • Degrees of freedom and generators in duality
  • High-order FEs in electromagnetism
  • Simplices

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