Mathematics > Numerical Analysis
[Submitted on 19 Aug 2017 (v1), last revised 16 Jan 2020 (this version, v3)]
Title:Convergence of HX Preconditioner for Maxwell's Equations with Jump Coefficients (i): Various Extensions of The Regular Helmholtz Decomposition
View PDFAbstract:This paper is the first one of two serial articles, whose goal is to prove convergence of HX Preconditioner (proposed by Hiptmair and Xu 2007) for Maxwell's equations with jump coefficients. In this paper we establish various extensions of the regular Helmholtz decomposition for edge finite element functions defined in three dimensional domains. The functions defined by the regular Helmholtz decompositions can preserve the zero tangential complement on faces and edges of polyhedral domains and some non-Lipchitz domains, and possess stability estimates with only a $logarithm$ factor. These regular Helmholtz decompositions will be used to prove convergence of the HX preconditioner for Maxwell's equations with jump coefficients in another paper (Hu 2017).
Submission history
From: Qiya Hu [view email][v1] Sat, 19 Aug 2017 14:15:41 UTC (401 KB)
[v2] Mon, 13 Aug 2018 07:46:14 UTC (463 KB)
[v3] Thu, 16 Jan 2020 01:52:14 UTC (1,787 KB)
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