A stable algorithm for computing a nearby defective matrix

Autori

  • R.O. Akinola Department of Mathematics, Faculty of Natural Sciences, University of Jos, Jos, Nigeria

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defective matrix##common.commaListSeparator## Jordan block##common.commaListSeparator## sensitivity of eigenproblem##common.commaListSeparator## Newton’s method.

Abstrakt

Given that A is a matrix with n distinct eigenvalues, in this paper, we describe a stable numerical method for computing a nearby defective matrix to A and the distance between them. The method makes use of the Gauss-Newton method which converges quadratically and only works in the case where the nearby defective matrix is real. Numerical experiments are given which confirms the theory.

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Publikované

2025-07-23