Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4641415 | Journal of Computational and Applied Mathematics | 2009 | 5 Pages |
Abstract
We consider the LDLT factorization of sparse skew symmetric matrices. We see that the pivoting strategies are similar, but simpler, to those used in the factorization of sparse symmetric indefinite matrices, and we briefly describe the algorithms used in a forthcoming direct code based on multifrontal techniques for the factorization of real skew symmetric matrices. We show how this factorization can be very efficient for preconditioning matrices that have a large skew component.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Iain S. Duff,