著者

Kaori Nagatou Takashi Morifuji

出版者

The Institute of Electronics, Information and Communication Engineers

雑誌

Nonlinear Theory and Its Applications, IEICE (ISSN:21854106)

巻号頁・発行日

vol.2, no.1, pp.111-122, 2011 (Released:2011-01-01)

参考文献数

13

被引用文献数

1

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An enclosure method for complex eigenvalues of ordinary differential operatos is presented. We formulate the eigenvalue problem as a nonlinear system and apply a fixed point theorem to enclose eigenvalues and eigenfunctions or a basis of the corresponding invariant subspaces in case of multiple eigenvalues. Some enclosure examples are given.