A degenerate kernel method for eigenvalue problems of a class of non-compact operators

Details A degenerate kernel method for eigenvalue problems of a class of non-compact operators A degenerate kernel method for eigenvalue problems of a class of non-compact operators

2008-09-09

arxiv.org/abs/0809.1521v3

Mathematics

Numerical Analysis

8 pages

Scientific paper

We consider the eigenvalue problem of certain kind of non-compact linear operators given as the sum of a multiplication and a kernel operator. A degenerate kernel method is used to approximate isolated eigenvalues. It is shown that entries of the corresponding matrix of this method can be evaluated exactly. The convergence of the method is proved; it is proved that the convergence rate is $O(h)$. By some numerical examples, we confirm the results.

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