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...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Pergamon Press
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/51330 |