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Journal Articles Numerische Mathematik Year : 2020

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.
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Dates and versions

hal-02188771 , version 1 (18-07-2019)

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Pierre Marchand, Xavier Claeys, Pierre Jolivet, Frédéric Nataf, Pierre-Henri Tournier. Two-level preconditioning for h-version boundary element approximation of hypersingular operator with GenEO. Numerische Mathematik, 2020, 146, pp.597-628. ⟨10.1007/s00211-020-01149-5⟩. ⟨hal-02188771⟩
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