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Found 3,295 Documents (Results 1–100)

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Rectangles of positive eigenvalues with positive eigenfunctions of nonlinear multiparameter coupled systems. (English) Zbl 07433411

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On eigenproblem for inverted harmonic oscillators. (English) Zbl 07407696

Banaszak, Grzegorz (ed.) et al., Arithmetic methods in mathematical physics and biology II. Proceedings of the 2nd international conference, Będlewo, Poland, August 5–11, 2018. Warsaw: Polish Academy of Sciences, Institute of Mathematics. Banach Cent. Publ. 124, 61-73 (2021).
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Minimality properties of Sturm-Liouville problems with increasing affine boundary conditions. (English) Zbl 1477.34045

Bastos, M. Amélia (ed.) et al., Operator theory, functional analysis and applications. Proceedings of the 30th international workshop on operator theory and its applications, IWOTA 2019, Lisbon, Portugal, July 22–26, 2019. Cham: Birkhäuser. Oper. Theory: Adv. Appl. 282, 33-49 (2021).
MSC:  34B24 34L10 34L15
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On the basic property in \(L_p\) of a system of eigenfunctions of a problem with the square of the spectral parameter in the boundary condition. (English. Russian original) Zbl 1477.34047

Differ. Equ. 57, No. 8, 1115-1118 (2021); translation from Differ. Uravn. 57, No. 8, 1142-1145 (2021).
MSC:  34B24 34L15 34L10
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Symbolic investigation of eigenvectors for general solution of a system of ODEs with a symbolic coefficient matrix. (English. Russian original) Zbl 1477.34112

Program. Comput. Softw. 47, No. 1, 6-16 (2021); translation from Programmirovanie 47, No. 1, 11-24 (2021).
MSC:  34L15 34L16 68W30
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Theoretical foundations of the study of a certain class of hybrid systems of differential equations. (English. Russian original) Zbl 1470.34059

J. Math. Sci., New York 254, No. 5, 625-651 (2021); translation from Itogi Nauki Tekh., Ser. Sovrem. Mat. Prilozh., Temat. Obz. 155, 38-64 (2018).
MSC:  34B09 34A38 34L15
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