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On the well-posed property of boundary value problems for multidimensional equations of mixed type. (English. Russian original) Zbl 0471.35058

Sov. Math., Dokl. 23, 381-383 (1981); translation from Dokl. Akad. Nauk SSSR 257, 834-836 (1981).

MSC:

35M99 Partial differential equations of mixed type and mixed-type systems of partial differential equations
35G15 Boundary value problems for linear higher-order PDEs
35B30 Dependence of solutions to PDEs on initial and/or boundary data and/or on parameters of PDEs
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