Two-level Overlapping Schwarz Methods Based on Local Generalized Eigenproblems for Hermitian Variational Problems
DOI10.1137/21M1424342zbMath1492.65345arXiv2105.13538OpenAlexW3165080361MaRDI QIDQ5065501
Junxian Wang, Jie Peng, Shi Shu, Qing Lu
Publication date: 22 March 2022
Published in: SIAM Journal on Scientific Computing (Search for Journal in Brave)
Full work available at URL: https://arxiv.org/abs/2105.13538
constrained energy minimizationgeneralized eigenproblemcoarse basis functionHermitian variational problemstwo-level overlapping Schwarz method
Multigrid methods; domain decomposition for boundary value problems involving PDEs (65N55) Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs (65N30) Hermitian, skew-Hermitian, and related matrices (15B57) Iterative numerical methods for linear systems (65F10) Preconditioners for iterative methods (65F08)
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