A PROBLEM FOR A THREE-DIMENSIONAL EQUATION OF MIXED TYPE WITH SINGULAR COEFFICIENT
Аннотация
Problem Statement
The study of boundary value problems for mixed-type equations is one of the central problems of the theory of partial differential equations of its appliedimportance. For the first time, F.I. Frankl [1] found important applications of these problems in gas dynamics, and I.N. Vekua [2] pointed out the importance of the problem of mixed-type equations in solving problems arising in the momentless theory of shells.
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