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A Proper Generalized Decomposition for the solution of elliptic problems in abstract form by using a functional Eckart-Young approach
被引:52
作者:
Falco, A.
[1
]
Nouy, A.
[2
]
机构:
[1] Univ CEU Cardenal Herrera, Dept Ciencias Fis Matemat & Computac, Alfara Del Patriarca 46115, Valencia, Spain
[2] Univ Nantes, Ecole Cent Nantes, UMR CNRS 6183, GeM Inst Rech Genie Civil & Mecan, F-44321 Nantes 3, France
关键词:
Proper Generalized Decomposition;
Singular values;
Tensor product Hilbert spaces;
SPECTRAL DECOMPOSITION;
COMPUTATIONAL STRATEGY;
APPROXIMATION;
SOLVERS;
FAMILY;
CHAOS;
TIME;
RANK;
D O I:
10.1016/j.jmaa.2010.12.003
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
The Proper Generalized Decomposition (PGD) is a methodology initially proposed for the solution of partial differential equations (PDE) defined in tensor product spaces. It consists in constructing a separated representation of the solution of a given PDE. In this paper we consider the mathematical analysis of this framework for a larger class of problems in an abstract setting. In particular, we introduce a generalization of Eckart and Young theorem which allows to prove the convergence of the so-called progressive PGD for a large class of linear problems defined in tensor product Hilbert spaces. (C) 2010 Elsevier Inc. All rights reserved.
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页码:469 / 480
页数:12
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