Finite sections method for Hessenberg ma
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Leonel Robert; Luis Santiago
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Article
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2003
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Elsevier Science
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English
⚖ 239 KB
Let D be a Hessenberg matrix and D the closed operator associated to it. In this work, we study the approximation of the resolvent of D by the resolvents of the truncated matrices D n of D: A concept of determinacy is introduced analogous to the one for Jacobi matrices. We apply our results to some