Two-level preconditioning for h-version boundary element approximation of hypersingular operator with GenEO

Abstract

In the present contribution, we consider symmetric positive definite operators stemming from boundary integral equation (BIE), and we study a two-level preconditioner where the coarse space is built using local generalized eigenproblems in the overlap. We will refer to this coarse space as the GenEO coarse space.

Publication
(Submitted to Numerische Mathematik)
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Pierre Marchand
Research Associate in applied mathematics
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