A direct solver with reutilization of LU factorizations for h-adaptive finite element grids with point singularities

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A direct solver with reutilization of LU factorizations for h-adaptive finite element grids with point singularities

This paper describes a direct solver algorithm for a sequence of finite element meshes that are h-refined towards one or several point singularities. For such a sequence of grids, the solver delivers linear computational cost O(N) in terms of CPU time and memory with respect to the number of unknown...

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Bibliographic Details
Main Authors:	Paszynski, M., Pardo, D., Calo, Victor
Format:	Journal Article
Published:	Pergamon Press 2013
Online Access:	http://hdl.handle.net/20.500.11937/51330

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