ASYMPTOTICS OF THE SOLUTION OF THE SYSTEM $ A(x,-ih\partial/\partial x)u=0$ AS $ h\to 0$ IN THE CASE OF CHARACTERISTICS OF VARIABLE MULTIPLICITY

DOI10.1070/IM1974V008N03ABEH002124zbMath0308.35080MaRDI QIDQ4065938

Publication date: 1975

Published in: Mathematics of the USSR-Izvestiya (Search for Journal in Brave)

Asymptotic behavior of solutions to PDEs (35B40) Pseudodifferential operators as generalizations of partial differential operators (35S05) Geometric theory, characteristics, transformations in context of PDEs (35A30) Initial value problems for PDEs with pseudodifferential operators (35S10)

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