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Found 428 Documents (Results 1–100)

A Dirichlet spectral problem in domains surrounded by thin stiff and heavy bands. (English) Zbl 1451.35098

Constanda, Christian (ed.), Computational and analytic methods in science and engineering. Selected papers based on the presentations at the 19th international conference on computational and mathematical methods in science and engineering, CMMSE’19, Rota, Spain, June 30 – July 6, 2019. Cham: Birkhäuser. 101-126 (2020).
MSC:  35P15 35B25 35J25
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Spectral properties of differential operators with oscillating coefficients. (English. Russian original) Zbl 1436.34021

Trans. Mosc. Math. Soc. 2019, 153-167 (2019); translation from Tr. Mosk. Mat. O.-va 80, No. 2, 179-195 (2019).
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Spectral deformation in a problem of singular perturbation theory. (English. Russian original) Zbl 1417.81133

Dokl. Math. 99, No. 1, 60-63 (2019); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 484, No. 4, 397-400 (2019).
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A general trace formula for a differential operator on a segment with zero order coefficient perturbed by a finite signed measure. (English. Russian original) Zbl 1455.34088

St. Petersbg. Math. J. 30, No. 3, 411-427 (2019); translation from Algebra Anal. 30, No. 3, 30-54 (2018).
MSC:  34L05 34L10
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Spectral asymptotics for fourth order differential operator with two turning points. (Russian. English summary) Zbl 1463.34355

Ufim. Mat. Zh. 10, No. 4, 24-40 (2018); translation in Ufa Math. J. 10, No. 4, 24-39 (2018).
MSC:  34L20 47E05 34L05
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Operator function method in the problem of normal waves in an inhomogeneous waveguide. (English. Russian original) Zbl 1414.78010

Differ. Equ. 54, No. 9, 1168-1179 (2018); translation from Differ. Uravn. 54, No. 9, 1196-1206 (2018).
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Estimates for root functions of a singular second-order differential operator. (English) Zbl 1403.34061

Kalmenov, Tynysbek Sh. (ed.) et al., Functional analysis in interdisciplinary applications, Astana, Kazakhstan, October 2–5, 2017. Cham: Springer (ISBN 978-3-319-67052-2/hbk; 978-3-319-67053-9/ebook). Springer Proceedings in Mathematics & Statistics 216, 245-257 (2017).
MSC:  34L10 47E05
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Impurity models and products of random matrices. (English) Zbl 1390.82028

Schehr, Grégory (ed.) et al., Stochastic processes and random matrices. Lecture notes of the Les Houches summer school. Volume 104, Les Houches, France, July 6–31, 2015. Oxford: Oxford University Press (ISBN 978-0-19-879731-9/hbk). 474-547 (2017).
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Rate of convergence for eigenfunctions of Aharonov-Bohm operators with a moving pole. (English) Zbl 1387.35132

Colli, Pierluigi (ed.) et al., Solvability, regularity, and optimal control of boundary value problems for PDEs. In honour of Prof. Gianni Gilardi. Cham: Springer (ISBN 978-3-319-64488-2/hbk; 978-3-319-64489-9/ebook). Springer INdAM Series 22, 1-30 (2017).
MSC:  35J10 35Q40 35J75
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Trace of order \((-1)\) for a string with singular weight. (English. Russian original) Zbl 1384.34027

Math. Notes 102, No. 2, 164-180 (2017); translation from Mat. Zametki 102, No. 2, 197-215 (2017).
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The phase-integral method in a problem of singular perturbation theory. (English. Russian original) Zbl 1367.34106

Izv. Math. 81, No. 2, 359-390 (2017); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 81, No. 2, 129-160 (2017).
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Homogenization of spectral problems with singular perturbation of the Steklov condition. (English. Russian original) Zbl 1377.35017

Izv. Math. 81, No. 1, 199-236 (2017); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 81, No. 1, 203-240 (2017).
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