Analysis of FETI methods for multiscale PDEs. Part II: interface variation

Abstract

In this article we give a new rigorous condition number estimate of the finite element tearing and interconnecting (FETI) method and a variant thereof, all-floating FETI. We consider the scalar elliptic equation in a twoor three-dimensional domain with a highly heterogeneous (multiscale) diffusion coefficient. This coefficient is allowed to have large jumps… (More)
DOI: 10.1007/s00211-011-0359-2

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