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Towards robust two‐level methods for indefinite systems
Author(s) -
Fish J.,
Qu Y.,
Suvorov A.
Publication year - 1999
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(19990810)45:10<1433::aid-nme638>3.0.co;2-5
Subject(s) - discretization , finite element method , solver , mathematics , algebraic number , helmholtz free energy , linear system , helmholtz equation , calculus (dental) , mathematical analysis , mathematical optimization , structural engineering , engineering , physics , medicine , dentistry , quantum mechanics , boundary value problem
We present a black‐box two‐level solver for indefinite algebraic linear system of equations arising from the finite element discretization. Numerical experiments show the applicability of the method to 3D Helmholtz equations and shear banding problems with strain softening. Copyright © 1999 John Wiley & Sons, Ltd.