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Positive solutions of linear quasielliptic evolution equations. (English. Russian original) Zbl 0258.35014

Math. USSR, Sb. 18(1972), 15-44 (1973); translation from Mat. Sb., n. Ser. 89(131), 16-45 (1972).

MSC:

35G05 Linear higher-order PDEs
35B45 A priori estimates in context of PDEs
35J30 Higher-order elliptic equations
35B05 Oscillation, zeros of solutions, mean value theorems, etc. in context of PDEs
35J70 Degenerate elliptic equations
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