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Une généralisation du théorème de propagation des singularites pour les opérateurs à symbole principal réel. (French) Zbl 0388.35004

Equat. Deriv. part., Proc., Saint-Jean-de-Monts 1977, Lect. Notes Math. 660, 81-87 (1978).

MSC:

35B99 Qualitative properties of solutions to partial differential equations
35S05 Pseudodifferential operators as generalizations of partial differential operators
35R20 Operator partial differential equations (= PDEs on finite-dimensional spaces for abstract space valued functions)