WIAS Preprint No. 1870, (2013)

Higher $L^p$ regularity for vector fields that satisfy divergence and rotation constraints in dual Sobolev spaces, and application to some low-frequency Maxwell equations



Authors

  • Druet, Pierre-Étienne
    ORCID: 0000-0001-5303-0500

2010 Mathematics Subject Classification

  • 35D10 35J55 35Q60

Keywords

  • Low-frequency Maxwell equations, transmission conditions, regularity theory, Div-Curl inequality, Div-Curl Lemma

Abstract

We show that Lp vector fields over a Lipschitz domain are integrable to higher exponents if their generalized divergence and rotation can be identified with bounded linear operators acting on standard Sobolev spaces. A Div-Curl Lemma-type argument provides compact embedding results for such vector fields. We investigate the regularity of the solution fields for the low-frequency approximation of the Maxwell equations in time-harmonic regime. We focus on the weak formulation 'in H' of the problem, in a reference geometrical setting allowing for material heterogeneities.

Appeared in

  • Discrete Contin. Dyn. Syst., 8 (2015) pp. 479--496.

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