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Regularity theory for nonautonomous Maxwell equations with perfectly conducting boundary conditions

2018/05/02 by Martin Spitz, Spitz, Martin
Mathematics · #35L50 #35Q61 #Analysis of PDEs (math.AP) #FOS: Mathematics #math.AP #msc:35L50 #msc:35Q61

paper · pdf · doi:10.48550/arxiv.1805.00671

44 pages; typo corrected

arxiv created 2018/05/29 · arxiv updated 2018/05/30

Abstract

In this work we study linear Maxwell equations with time- and space-dependent matrix-valued permittivity and permeability on domains with a perfectly conducting boundary. This leads to an initial boundary value problem for a first order hyperbolic system with characteristic boundary. We prove a priori estimates for solutions in Hm. Moreover, we show the existence of a unique Hm-solution if the coefficients and the data are accordingly regular and satisfy certain compatibility conditions. Since the boundary is characteristic for the Maxwell system, we have to exploit the divergence conditions in the Maxwell equations in order to derive the energy-type Hm-estimates. The combination of these estimates with several regularization techniques then yields the existence of solutions in Hm.

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