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Rates of robust superlinear convergence of preconditioned Krylov methods for elliptic FEM problems.
- Source :
- Numerical Algorithms; Jun2024, Vol. 96 Issue 2, p719-738, 20p
- Publication Year :
- 2024
-
Abstract
- This paper considers the iterative solution of finite element discretizations of second-order elliptic boundary value problems. Mesh independent estimations are given for the rate of superlinear convergence of preconditioned Krylov methods, involving the connection between the convergence rate and the Lebesgue exponent of the data. Numerical examples demonstrate the theoretical results. [ABSTRACT FROM AUTHOR]
- Subjects :
- BOUNDARY value problems
KRYLOV subspace
FINITE element method
Subjects
Details
- Language :
- English
- ISSN :
- 10171398
- Volume :
- 96
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Numerical Algorithms
- Publication Type :
- Academic Journal
- Accession number :
- 177350957
- Full Text :
- https://doi.org/10.1007/s11075-023-01663-1