Wave packet pseudomodes of twisted Toeplitz matrices
The pseudospectra of nonsymmetric Toeplitz or circulant matrices with varying coefficients are considered. Such matrices are characterized by a symbol that depends on both position (x) and wave number (k). It is shown that when a certain winding number or twist condition is satisfied, analogous to H...
| Автори: | , |
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| Формат: | Report |
| Опубліковано: |
Unspecified
2002
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