How Does the Partition of Unity Influence SORAS Preconditioner?

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发表日期：

2024年

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Marcella Bonazzoli,
Xavier Claeys,
Frederic Nataf,
Pierre-Henri Tournier

摘要

The Symmetrized Optimized Restricted Additive Schwarz (SORAS) preconditioner, first introduced in [8] for the Helmholtz equation and called OBDD-H, was later studied in [6] for generic symmetric positive definite problems and viewed as a symmetric variant of ORAS preconditioner.