On the regularization of equations of subprincipal type

DOI10.1070/RM1982V037N02ABEH003946zbMath0507.35088MaRDI QIDQ4744687

B. Yu. Sternin

Publication date: 1982

Published in: Russian Mathematical Surveys (Search for Journal in Brave)

zbMATH Keywords

regularizationmicrolocal structurereal principal symbolsmooth Riemannian manifoldequations of subprincipal type

Mathematics Subject Classification ID

Pseudodifferential operators as generalizations of partial differential operators (35S05) Sobolev spaces and other spaces of ``smooth functions, embedding theorems, trace theorems (46E35) Theoretical approximation in context of PDEs (35A35) Pseudodifferential and Fourier integral operators on manifolds (58J40) Global Riemannian geometry, including pinching (53C20)

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