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On the Computation of Null Spaces of Sparse Rectangular Matrices

โœ Scribed by Gotsman, Craig; Toledo, Sivan


Book ID
118215899
Publisher
Society for Industrial and Applied Mathematics
Year
2008
Tongue
English
Weight
229 KB
Volume
30
Category
Article
ISSN
0895-4798

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In this paper we compare Krylov subspace methods with Chebyshev series expansion for approximating the matrix exponential operator on large, sparse, symmetric matrices. Experimental results upon negative-definite matrices with very large size, arising from (2D and 3D) FE and FD spatial discretizatio