On the second subprincipal symbol of a pseudodifferential operator

DOI10.1080/03605308908820629zbMath0685.35108OpenAlexW1979877625MaRDI QIDQ4735561

Vladimir Tulovsky

Publication date: 1989

Published in: Communications in Partial Differential Equations (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03605308908820629

zbMATH Keywords

invariantschange of variablessecond subprincipal symbol

Mathematics Subject Classification ID

Pseudodifferential operators as generalizations of partial differential operators (35S05)

Related Items (1)

On hypoellipticity and solvability of linear partial differential operators with multiple characteristics

Cites Work

• Order-preserving isomorphisms between algebras of pseudo-differential operators
• The weyl calculus of pseudo-differential operators

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