Počet záznamů: 1
Additive Schwarz preconditioner for the finite volume element discretization of symmetric elliptic problems
- 1.0447835 - ÚTIA 2017 RIV SE eng J - Článek v odborném periodiku
Marcinkowski, L. - Rahman, T. - Loneland, A. - Valdman, Jan
Additive Schwarz preconditioner for the finite volume element discretization of symmetric elliptic problems.
Bit. Roč. 56, č. 3 (2016), s. 967-993. ISSN 0006-3835. E-ISSN 1572-9125
Grant CEP: GA ČR GA13-18652S
Institucionální podpora: RVO:67985556
Klíčová slova: Domain decomposition * Additive Schwarz method * Finite volume element * GMRES
Kód oboru RIV: BA - Obecná matematika
Impakt faktor: 1.670, rok: 2016
http://library.utia.cas.cz/separaty/2015/MTR/valdman-0447835.pdf
A symmetric and a nonsymmetric variant of the additive Schwarz preconditioner are proposed for the solution of a class of finite volume element discretization of the symmetric elliptic problem in two dimensions, with large jumps in the entries of the coefficient matrices across subdomains. It is shown that the convergence of the preconditioned generalized minimal residual iteration using the proposed preconditioners depends polylogarithmically, in other words weakly, on the mesh parameters, and that they are robust with respect to the jumps in the coefficients.
Trvalý link: http://hdl.handle.net/11104/0249607
Počet záznamů: 1