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A Low-Rank Inexact Newton-Krylov Method for Stochastic Eigenvalue Problems
被引:14
作者:
Benner, Peter
[1
]
Onwunta, Akwum
[1
]
Stoll, Martin
[2
]
机构:
[1] Max Planck Inst Dynam Complex Tech Syst, Computat Methods Syst & Control Theory, Sandtorstr 1, D-39106 Magdeburg, Germany
[2] Tech Univ Chemnitz, Fac Math, Sci Comp, D-09107 Chemnitz, Germany
关键词:
Stochastic Galerkin System;
Krylov Methods;
Eigenvalues;
Eigenvectors;
Low-Rank Solution;
Preconditioning;
FULLY COUPLED SOLUTION;
DAVIDSON TYPE METHOD;
FORCING TERMS;
EQUATIONS;
GMRES;
PDES;
D O I:
10.1515/cmam-2018-0030
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
This paper aims at the efficient numerical solution of stochastic eigenvalue problems. Such problems often lead to prohibitively high-dimensional systems with tensor product structure when discretized with the stochastic Galerkin method. Here, we exploit this inherent tensor product structure to develop a globalized low-rank inexact Newton method with which we tackle the stochastic eigenproblem. We illustrate the effectiveness of our solver with numerical experiments.
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页码:5 / 22
页数:18
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