On inverses of Hessenberg matrices |
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Authors: | Yasuhiko Ikebe |
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Institution: | Department of Computer Sciences Northwestern University Evanston, Illinois 60201, USA |
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Abstract: | The lower half of the inverse of a lower Hessenberg matrix is shown to have a simple structure. The result is applied to find an algorithm for finding the inverse of a tridiagonal matrix. With minor modifications, the technique applies to block Hessenberg matrices. |
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Keywords: | |
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