A subspace iteration algorithm for Fredholm valued functions (Q1665726)
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scientific article; zbMATH DE number 6926398
| Language | Label | Description | Also known as |
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| English | A subspace iteration algorithm for Fredholm valued functions |
scientific article; zbMATH DE number 6926398 |
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A subspace iteration algorithm for Fredholm valued functions (English)
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27 August 2018
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Summary: We present an algorithm for approximating an eigensubspace of a spectral component of an analytic Fredholm valued function. Our approach is based on numerical contour integration and the analytic Fredholm theorem. The presented method can be seen as a variant of the FEAST algorithm for infinite dimensional nonlinear eigenvalue problems. Numerical experiments illustrate the performance of the algorithm for polynomial and rational eigenvalue problems.
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