Abstract
A study is made of the solvability of boundary value problems for three systems of differential equations of mixed and composite types in many-dimensional domains. Theorems of existence and uniqueness of solutions of these problems are proved.
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Yu. M. Berezanskii, Expansion in Characteristic Functions of Self-Adjoint Operators [in Russian], Naukova Dumka, Kiev (1965).
O. A. Ladyzhenskaya, Boundary Value Problems of Mathematical Physics [in Russian], Nauka, Moscow (1973).
I. I. Lyashko, V. P. Didenko, and O. E. Tsitritskii, Filtration of Noise [in Russian], Naukova Dumka, Kiev (1979).
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 42, No. 4, pp. 507–512, April, 1990.
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Malovichko, V.A. Boundary value problems for systems of equations of mixed and composite types. Ukr Math J 42, 449–454 (1990). https://doi.org/10.1007/BF01071333
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DOI: https://doi.org/10.1007/BF01071333