## Found 23 Documents (Results 1–23)

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### Non-self-adjointness of bent optical waveguide eigenvalue problem. (English)Zbl 07496943

MSC:  47Axx 34Lxx 35Pxx
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### Spectral analysis of small perturbations of geostrophic currents with a parabolic vertical profile of velocity as applied to the ocean. (English. Russian original)Zbl 07457142

Comput. Math. Math. Phys. 61, No. 12, 1966-1979 (2021); translation from Zh. Vychisl. Mat. Mat. Fiz. 61, No. 12, 2010-2023 (2021).
MSC:  76-XX 86-XX
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### Asymptotics of the eigenvalues and eigenfunctions of a non-self-adjoint problem with a spectral parameter in the boundary condition. (English)Zbl 07401984

MSC:  34L20 34B09 34L10

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### On the influence of the beta effect on the spectral characteristics of unstable perturbations of ocean currents. (English. Russian original)Zbl 1456.76056

Comput. Math. Math. Phys. 60, No. 11, 1900-1912 (2020); translation from Zh. Vychisl. Mat. Mat. Fiz. 60, No. 11, 1962-1974 (2020).
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### Nonlocal problem for a mixed type fourth-order differential equation with Hilfer fractional operator. (English)Zbl 1448.35341

MSC:  35M12 35R11 35R09
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### Spectral analysis of model Couette flows in application to the ocean. (English. Russian original)Zbl 1458.76048

Comput. Math. Math. Phys. 59, No. 5, 815-835 (2019); translation from Zh. Vychisl. Mat. Mat. Fiz. 59, No. 5, 867-888 (2019).
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### Evolution PDEs and augmented eigenfunctions. half-line. (English)Zbl 1338.35309

MSC:  35P10 35C15 35G16
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### Asymptotic analysis of the eigenvalue problem for the gyrowaterbag operator in toroidal geometry. (English)Zbl 1327.35277

Dogbe, Christian (ed.), Actes du colloque “EDP-Normandie”, Caen, France, Octobre 24–25, 2013. [s.l.]: Fédération Normandie-Mathématiques (ISBN 978-2-9541221-2-0/pbk). Normandie-Mathématiques, 17-30 (2014).
MSC:  35P20 35Q83

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### Necessary and sufficient conditions for the solvability of the inverse problem for non-self-adjoint pencils of Sturm-Liouville operators on the half-line. (English)Zbl 1256.34014

MSC:  34A55 34B24
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### Basis properties of the root functions of an eigenvalue problem with a spectral parameter in the boundary conditions. (English. Russian original)Zbl 1213.34105

Dokl. Math. 82, No. 1, 583-586 (2010); translation from Dokl. Akad. Nauk, Ross. Akad. Nauk 433, No. 5, 583-586 (2010).
MSC:  34L10 34B09
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### Spectral inclusion and spectral exactness for PDEs on exterior domains. (English)Zbl 1057.65079

MSC:  65N25 35P15 35J25
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### The problem of the vibration of a finite string with nonlinear perturbation. (English. Russian original)Zbl 1008.35043

Russ. Math. 43, No. 3, 14-19 (1999); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 1999, No. 3, 17-21 (1999).

### A boundary value problem with a discontinuous coefficient and containing a spectral parameter in the boundary condition. (English)Zbl 0822.47001

MSC:  47A10 47E05
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### Eigenfunction expansions in thermoelasticity. (English)Zbl 0609.73006

Reviewer: J.L.Nowinski
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### Division of the spectrum of an elliptic operator associated with ”small diffusion”. (English. Russian original)Zbl 0578.35073

Vestn. Leningr. Univ., Math. 18, No. 1, 27-36 (1985); translation from Vestn. Leningr. Univ. 1985, No. 1, Mat. Mekh. Astron. No. 1, 20-27 (1985).
MSC:  35P05 35J25

### Singular perturbations of multiple eigenvalues of non-self-adjoint operators. II. (English)Zbl 0546.35006

Nonlinear partial differential equations and their applications, Coll. France Semin., Vol. 4, Res. Notes Math. 84, 112-136 (1983).
Reviewer: R.D.Grigorieff

### On the spectrum and the distribution of singular values of Schrödinger operators with a complex potential. (English)Zbl 0523.35035

MSC:  35J10 35P05 47A10
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### Application of point least squares method with B-splines in solid mechanics problems. (English)Zbl 0484.73072

MSC:  74S30 65N35 74H45 65D07 65N25
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