Adjoint and self-adjoint boundary value problems on a geometric graph |
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Authors: | M. G. Zavgorodnij |
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Affiliation: | 1. Voronezh State University, Voronezh, Russia
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Abstract: | We consider boundary value problems of arbitrary order for linear differential equations on a geometric graph. Solutions of boundary value problems are coordinated at the interior vertices of the graph and satisfy given conditions at the boundary vertices. For considered boundary value problems, we construct adjoint boundary value problems and obtain a self-adjointness criterion. We describe the structure of the solution set of homogeneous self-adjoint boundary value problems with alternating coefficients of a differential equation and obtain nondegeneracy conditions for these boundary value problems. |
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