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Implementation Aspects of Band Lanczos Algorithms for Computation of Eigenvalues of Large Sparse Symmetric Matrices

✍ Scribed by Axel Ruhe

Book ID
118013433
Publisher
American Mathematical Society
Year
1979
Tongue
English
Weight
637 KB
Volume
33
Category
Article
ISSN
0025-5718

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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