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Efficient estimation of sparse Jacobian matrices by differences

โœ Scribed by T.J. Ypma

Book ID
103792065
Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
790 KB
Volume
18
Category
Article
ISSN
0377-0427

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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