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Polynomial chaos representation of a stochastic preconditioner
Abstract : A method is developed in this paper to accelerate the convergence in computing the solution of stochastic algebraic systems of equations. The method is based on computing, via statistical sampling, a polynomial chaos decomposition of a stochastic preconditioner to the system of equations. This preconditioner can subsequently be used in conjunction with either chaos representations of the solution or with approaches based on Monte Carlo sampling. In addition to presenting the supporting theory, the paper also presents a convergence analysis and an example to demonstrate the significance of the proposed algorithm.
Cited literature [13 references]
https://hal-upec-upem.archives-ouvertes.fr/hal-00686183
Contributor : Christian Soize Connect in order to contact the contributor
Submitted on : Sunday, April 8, 2012 - 12:19:46 PM
Last modification on : Wednesday, March 24, 2021 - 1:58:08 PM
Long-term archiving on: : Monday, November 26, 2012 - 1:05:58 PM
Contributor : Christian Soize Connect in order to contact the contributor
Submitted on : Sunday, April 8, 2012 - 12:19:46 PM
Last modification on : Wednesday, March 24, 2021 - 1:58:08 PM
Long-term archiving on: : Monday, November 26, 2012 - 1:05:58 PM
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