Discrete perturbation estimates for eigenpairs of Fredholm operator-valued functions

Luka Grubišić and Antonia Grbić

Applied Mathematics and Computation, 2015, vol. 267, issue C, 632-647

Abstract: We present perturbation estimates for eigenvalue and eigenvector approximations for a class of Fredholm operator-valued functions. Our approach is based on perturbation estimates for the generalized resolvents and the exponential convergence of the contour integration by the trapezoidal rule. We use discrete residual functions to estimate the resolvents a posteriori. Numerical experiments are also presented.

Keywords: Nonlinear eigenvalue problems; Numerical methods; Contour integrals (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:267:y:2015:i:c:p:632-647

DOI: 10.1016/j.amc.2015.01.010

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