Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Olof B. Widlund"'
Publikováno v:
SIAM Journal on Scientific Computing. 44:A2349-A2369
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a93ea532c573fabbe675597ab08136b
https://doi.org/10.1137/21m1438839
https://doi.org/10.1137/21m1438839
Publikováno v:
Mathematics of Computation. 90:1773-1797
For computer time, this research also used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa3f22261c93bd6e3cbdf7fc87bc2306
https://doi.org/10.1090/mcom/3614
https://doi.org/10.1090/mcom/3614
Autor:
Olof B. Widlund
Publikováno v:
75 Years of Mathematics of Computation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8910fc8d4e17414f379a3c5b9ddb763d
https://doi.org/10.1090/conm/754/15146
https://doi.org/10.1090/conm/754/15146
Publikováno v:
SIAM Journal on Scientific Computing, 44(3)
A new reduced-dimension adaptive generalized Dryja-Smith-Widlund (GDSW) overlapping Schwarz method for linear second-order elliptic problems in three dimensions is introduced. It is robust with respect to large contrasts of the coefficients of the pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cc7a139b89020821304ea7ca4b9c5af
https://doi.org/10.1137/20m1364540
https://doi.org/10.1137/20m1364540
Publikováno v:
SIAM Journal on Scientific Computing. 41:A3021-A3044
We present a family of approximate BDDC preconditioners based on inexact solvers for the coarse problem. The basic idea is to replace the direct solver for a standard BDDC coarse problem by a preco...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80550715f6c64cc8f46c01bebbd38279
https://doi.org/10.1137/19m1237557
https://doi.org/10.1137/19m1237557
Autor:
Zdeněk Dostál, Tomáš Kozubek, Axel Klawonn, Ulrich Langer, Luca F. Pavarino, Jakub Šístek, Olof B. Widlund
These are the proceedings of the 27th International Conference on Domain Decomposition Methods in Science and Engineering, which was held in Prague, Czech Republic, in July 2022.Domain decomposition methods are iterative methods for solving the of
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783030567491
In this study, we present Balancing Domain Decomposition by Constraints (BDDC) preconditioners for three-dimensional scalar elliptic and linear elasticity problems in which the direct solution of the coarse problem is replaced by a preconditioner bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::339205ac97eafef538fe1d7998708d43
https://doi.org/10.1007/978-3-030-56750-7_12
https://doi.org/10.1007/978-3-030-56750-7_12
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783030567491
The aim of this work is to develop a block FETI–DP preconditioner for mixed formulations of almost incompressible elasticity discretized with mixed isogeometric analysis (IGA) methods with continuous pressure
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73ec66d5a65ea078c134226427250d46
https://doi.org/10.1007/978-3-030-56750-7_40
https://doi.org/10.1007/978-3-030-56750-7_40
Publikováno v:
Mathematical Models and Methods in Applied Sciences. 28:1337-1370
Balancing Domain Decomposition by Constraints (BDDC) preconditioners have been shown to provide rapidly convergent preconditioned conjugate gradient methods for solving many of the very ill-conditioned systems of algebraic equations which often arise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6a2c5e10cd77ea43069534b299ede4c
https://doi.org/10.1142/s0218202518500367
https://doi.org/10.1142/s0218202518500367
Publikováno v:
Mathematics of Computation. 87:659-692
A BDDC domain decomposition preconditioner is defined by a coarse component, expressed in terms of primal constraints, a weighted average across the interface between the subdomains, and local components given in terms of solvers of local subdomain p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ed1e0c9fea64ddab5292376a7fe8c61
https://doi.org/10.1090/mcom/3254
https://doi.org/10.1090/mcom/3254