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Yang phase for non-Hermitian systems and biunitary transformations

โœ Scribed by R. Mignani


Book ID
103784471
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
531 KB
Volume
162
Category
Article
ISSN
0375-9601

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Preconditioners for non-Hermitian Toepli
โœ Raymond H. Chan; Daniel Potts; Gabriele Steidl ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 131 KB

In this paper, we construct new !-circulant preconditioners for non-Hermitian Toeplitz systems, where we allow the generating function of the sequence of Toeplitz matrices to have zeros on the unit circle. We prove that the eigenvalues of the preconditioned normal equation are clustered at 1 and tha