A projection method for nonlinear eigenvalue problems using contour integrals

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概要

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• In this paper, we indicate that the Sakurai-Sugiura method with Rayleigh-Ritz projection technique, a numerical method for generalized eigenvalue problems, can be extended to nonlinear eigenvalue problems. The target equation is $T(\lambda)\bm{v}=0$, where $T$ is a matrix-valued function. The method can extract only the eigenvalues within a Jordan curve $\Gamma$ by converting the original problem to a problem with a smaller dimension. Theoretical validation of the method is discussed, and we describe its application using numerical examples.

著者

• Sakurai Tetsuya

  Department Of Computer Science University Of Tsukuba

• Yokota Shinnosuke

  College of Information Science, University of Tsukuba

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