Zobrazeno 1 - 10
of 60
pro vyhledávání: '"block krylov subspace methods"'
In this paper, we consider a family of algorithms, called IDR, based on the induced dimension reduction theorem. IDR is a family of efficient short recurrence methods introduced by Sonneveld and Van Gijzen for solving large systems of nonsymmetric li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______386::1177d63343417c572519c5eb5b26386f
http://epub.oeaw.ac.at/?arp=buecher/Organisationseinheiten/_id105092_/ETNA/etna_Vol_58/pp470-485.pdf
http://epub.oeaw.ac.at/?arp=buecher/Organisationseinheiten/_id105092_/ETNA/etna_Vol_58/pp470-485.pdf
Publikováno v:
Boletim da Sociedade Paranaense de Matemática, Vol 36, Iss 3 (2018)
In the present paper, we are concerned by weighted Arnoldi like methods for solving large and sparse linear systems that have different right-hand sides but have the same coefficient matrix. We first give detailed descriptions of the weighted Gram-Sc
Externí odkaz:
https://doaj.org/article/ed08ea55ca94422796c4ab957f7e5f6f
Akademický článek
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Autor:
Balabanov, Oleg, Grigori, Laura
We propose a block version of the randomized Gram-Schmidt process for computing a QR factorization of a matrix. Our algorithm inherits the major properties of its single-vector analogue from [Balabanov and Grigori, 2020] such as higher efficiency tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f96fa7826301bf8d4845633db86a29fd
https://hal.inria.fr/hal-03469555/document
https://hal.inria.fr/hal-03469555/document
Publikováno v:
Numerical Linear Algebra and Applications
Numerical Linear Algebra with Applications, 28(1):e2339. Wiley
Numerical Linear Algebra with Applications, 28(1):e2339. Wiley
Block Krylov subspace methods (KSMs) comprise building blocks in many state-of-the-art solvers for large-scale matrix equations as they arise, for example, from the discretization of partial differential equations. While extended and rational block K
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c8312968aba68133d1eafcfb1c5c86b
https://hdl.handle.net/21.11116/0000-0007-8EE7-521.11116/0000-0005-D5BC-721.11116/0000-0005-D5BE-5
https://hdl.handle.net/21.11116/0000-0007-8EE7-521.11116/0000-0005-D5BC-721.11116/0000-0005-D5BE-5
Akademický článek
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Publikováno v:
Boletim da Sociedade Paranaense de Matemática, Vol 36, Iss 3, Pp 155-172 (2018)
In the present paper, we are concerned by weighted Arnoldi like methods for solving large and sparse linear systems that have different right-hand sides but have the same coefficient matrix. We first give detailed descriptions of the weighted Gram-Sc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::118d244843a605550296a03434abfb37
https://doi.org/10.5269/bspm.v36i3.32109
https://doi.org/10.5269/bspm.v36i3.32109
Publikováno v:
SIAM Journal on Scientific Computing, 40(3), B684-B705. Society for Industrial and Applied Mathematics (SIAM)
SIAM journal on scientific computing, 40(3), B684-B705. Society for Industrial and Applied Mathematics Publications
SIAM journal on scientific computing, 40(3), B684-B705. Society for Industrial and Applied Mathematics Publications
We present an exponential time integration method for the incompressible Navier–Stokes equation. An essential step in our procedure is the treatment of the pressure by applying a divergence-free projection to the momentum equation. The differential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a6ba3d14b612d246d7a49ac1d84ff41
https://doi.org/10.1137/17m1121950
https://doi.org/10.1137/17m1121950
Publikováno v:
Journal of scientific computing, 78(2), 746-769. SPRINGER/PLENUM PUBLISHERS
We consider the efficient solution of linear systems with multiple shifts and multiple right-hand sides given simultaneously that arise frequently in large-scale scientific and engineering simulations. We introduce a new shifted block GMRES method th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81f73002cafca1d696b7b973a218da15
https://research.rug.nl/en/publications/80fbc300-c20b-41e2-a60b-7ae7431aa29e
https://research.rug.nl/en/publications/80fbc300-c20b-41e2-a60b-7ae7431aa29e