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Theorems of the solvability of boundary value problems for a class of degenerating high order elliptic equations. (Russian) Zbl 0425.35048

Tr. Semin. S.L. Soboleva 1978, No. 2, 49-68 (1978).

MSC:

35J70 Degenerate elliptic equations
35R20 Operator partial differential equations (= PDEs on finite-dimensional spaces for abstract space valued functions)
47A53 (Semi-) Fredholm operators; index theories
35A05 General existence and uniqueness theorems (PDE) (MSC2000)