Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Victoria E. Howle"'
Autor:
Victoria E. Howle, Heather A. Lewis
Publikováno v:
Fifty Years of Women in Mathematics ISBN: 9783030826574
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1c4f39e7e42fd5f4a040042d37671cc
https://doi.org/10.1007/978-3-030-82658-1_23
https://doi.org/10.1007/978-3-030-82658-1_23
A new preconditioner based on a block $LDU$ factorization with algebraic multigrid subsolves for scalability is introduced for the large, structured systems appearing in implicit Runge-Kutta time integration of parabolic partial differential equation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72d7c65b52ffaa9d6600f6b3b2f67834
http://arxiv.org/abs/2010.11377
http://arxiv.org/abs/2010.11377
Publikováno v:
Applied Mathematics Letters. 82:1-7
In this paper, we apply the augmented Lagrangian (AL) approach to steady buoyancy driven flow problems. Two AL preconditioners are developed based on the variable’s order, specifically whether the leading variable is the velocity or the temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32c17ecd9438803ad4f7ffa680646e15
https://doi.org/10.1016/j.aml.2018.02.013
https://doi.org/10.1016/j.aml.2018.02.013
Publikováno v:
Journal of Computational and Applied Mathematics. 369:112582
In this paper we use the notion of field-of-values (FOV) equivalence of matrices to study a class of block-triangular preconditioners for the fixed-point linearization of the Rayleigh–Benard convection problem discretized with inf–sup stable fini
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::384aa548ed5a12e7b01f7e6b7fe9534b
https://doi.org/10.1016/j.cam.2019.112582
https://doi.org/10.1016/j.cam.2019.112582
Publikováno v:
SIAM Journal on Scientific Computing. 35:S368-S385
Finite element discretizations of multiphysics problems frequently give rise to block-structured linear algebra problems that require effective preconditioners. We build two classes of preconditioners in the spirit of well-known block factorizations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38784cc68c6b356f1fa7dce24ef84453
https://doi.org/10.1137/120883086
https://doi.org/10.1137/120883086
Autor:
Robert C. Kirby, Victoria E. Howle
Publikováno v:
Numerical Linear Algebra with Applications. 19:427-440
SUMMARYWe derive block preconditioners for a finite element discretization of incompressible flow coupled toheat transport by the Boussinesq approximation. Our techniques rely on effectively approximating theSchur complement obtained by eliminating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03cb3593d40883cd79e9b36ab5a6e923
https://doi.org/10.1002/nla.1814
https://doi.org/10.1002/nla.1814
Publikováno v:
Journal of Computational Physics. 227:1790-1808
In recent years, considerable effort has been placed on developing efficient and robust solution algorithms for the incompressible Navier-Stokes equations based on preconditioned Krylov methods. These include physics-based methods, such as SIMPLE, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b18e649f641d7ffc6602cda9e4c677e
https://doi.org/10.1016/j.jcp.2007.09.026
https://doi.org/10.1016/j.jcp.2007.09.026
Publikováno v:
SIAM Journal on Scientific Computing. 30:290-311
This paper introduces two stabilization schemes for the least squares commutator (LSC) preconditioner developed by Elman, Howle, Shadid, Shuttleworth, and Tuminaro [SIAM J. Sci. Comput., 27 (2006), pp. 1651-1668] for the incompressible Navier-Stokes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::101a1778b6b4b37937597337d9375e20
https://doi.org/10.1137/060655742
https://doi.org/10.1137/060655742
Publikováno v:
SIAM Journal on Scientific Computing. 27:1651-1668
This paper introduces a strategy for automatically generating a block preconditioner for solving the incompressible Navier--Stokes equations. We consider the "pressure convection--diffusion preconditioners" proposed by Kay, Loghin, and Wathen [SIAM J
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c33c871a59f5ea4aaad5f1f612f46a61
https://doi.org/10.1137/040608817
https://doi.org/10.1137/040608817
Autor:
Victoria E. Howle, Stephen A. Vavasis
Publikováno v:
SIAM Journal on Matrix Analysis and Applications. 26:1150-1178
We propose an iterative method for solving a complex-symmetric linear system arising in electric power networks. Our method extends Gremban, Miller, and Zagha's [in Proceedings of the International Parallel Processing Symposium, IEEE Computer Society
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0485196220d90df168730208ddd00d64
https://doi.org/10.1137/s0895479800370871
https://doi.org/10.1137/s0895479800370871