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The fundamental subspace sequences of matrix pencils: A toeplitz matrix unified characterization

โœ Scribed by Helen Eliopoulou; Nicos Karcanias

Publisher
Springer
Year
1998
Tongue
English
Weight
979 KB
Volume
17
Category
Article
ISSN
0278-081X

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We compare the block Lanezos and the Davidson methods for computing a basis of a singular subspace associated with the smallest singular values of large matrices. We introduce a simple modification on the preconditioning step of Davidson's method which appears to be efficient on a range of large spa