Mathematical Sciences: Faculty Presentations (1991-2022)

The Asymptotic Convergence Factor for a Rectangle Under a Perturbation

Document Type

Presentation

Presentation Date

8-15-1993

Copyright

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Abstract or Description

Let O be a rectangle symmetric with respect to the axes and exclude 1. The asymptotic convergence factor (ACF) for O is used to measure the rate of convergence for the asymptotically optimal semiiterative methods for solving a linear system x = Tx + c, where the spectrum of T is a subset of 0. The sensitivity of the ACF for O to a perturbation of its boundry is investigated with the application of Hardamard's variation formula. Three formulae for the sensitivity are derived.

Sponsorship/Conference/Institution

Society for Industrial and Applied Mathematics Conference on Applied Linear Algebra (SIAM)

Location

Seattle, Washington

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