Geodesic
Spectral characteristics of a nonlocal problem
Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, Tome 21 (2017) no. 3, pp. 423-436 Cet article a éte moissonné depuis la source Math-Net.Ru

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We study the boundary-value problem for a linear system of differential equations written in the form of differential-operator equations $$ aD_t u(t)+bBu(t)=f(t) $$ with nonlocal boundary conditions at $t$. Such a boundary value problem for a linear system of differential equations (including partial derivatives), we shall call nonlocal. The purpose of the article is to study the spectral characteristics of differential operators generated by the nonlocal task for the two linear systems of differential equations considered in a bounded region of finite-dimensional Euclidean space.
Keywords: boundary value problem, operator spectrum, elliptic systems, systems of differential equations, Riesz basis.
Mots-clés : nonlocal conditions 
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D. V. Kornienko. Spectral characteristics of a nonlocal problem. Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, Tome 21 (2017) no. 3, pp. 423-436. http://geodesic.mathdoc.fr/item/VSGTU_2017_21_3_a2/

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