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Propagation of analyticity along real bicharacteristics. (English) Zbl 0471.35013


MSC:

35B65 Smoothness and regularity of solutions to PDEs
35S05 Pseudodifferential operators as generalizations of partial differential operators
35A20 Analyticity in context of PDEs
35A30 Geometric theory, characteristics, transformations in context of PDEs

Citations:

Zbl 0458.35026
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