1.

図書
図書
1. Spectral theory of differential operators : M. Sh. Birman 80th anniversary collection
T. Suslina, D. Yafaev, editors
出版情報: Providence, R.I. : American Mathematical Society, c2008
シリーズ名: American Mathematical Society translations ; ser. 2, v. 225 . Advances in the mathematical sciences : (formerly Advances in Soviet mathematics) ; 62
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2.

図書
図書
2. Two-parameter eigenvalue problems in ordinary differential equations
M. Faierman
出版情報: Harlow, Essex, England : Longman Scientific & Technical , New York : Wiley, 1991
シリーズ名: Pitman research notes in mathematics series ; 205
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