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Bulletin of Irkutsk State University. Series Mathematics, 2022 Volume 42, Pages 59–74 (Mi iigum506)

Integro-differential equations and functional analysis

The Samarsky–Ionkin problem with integral perturbation for a pseudoparabolic equation

A. I. Kozhanovab, G. I. Tarasovac

a Sobolev Institute of Mathematics SB RAS, Novosibirsk, Russian Federation
b Academy of Sciences of the Republic of Sakha (Yakutia), Yakutsk, Russian Federation
c North-Eastern Federal University, Yakutsk, Russian Federation

Abstract: In the work the solvability of nonlocal boundary value problems for third-order pseudoparabolic equations in anisotropic spaces of Sobolev is studied. The condition is specified by a spatial variable that combines the generalized Samarsky–Ionkin condition and the integral type condition is particularity of the problems under study. The work aim is to prove the existence and uniqueness of the problems regular solutions — the solutions that have all Sobolev derivatives included in the corresponding equation.

Keywords: Sobolev type differential equations of the third order, spatially-nonlocal boundary value problems, generalized Samarsky–Ionkin condition, regular solutions, existence and uniqueness.

UDC: 517.95

MSC: 35G45, 35R99

Received: 26.06.2022
Revised: 18.08.2022
Accepted: 01.09.2022

DOI: 10.26516/1997-7670.2022.42.59



© Steklov Math. Inst. of RAS, 2024