On hypoelliptic operators with multiple characteristics of odd order

zbMath0544.35024MaRDI QIDQ796730

Yoshinori Morimoto

Publication date: 1983

Published in: Osaka Journal of Mathematics (Search for Journal in Brave)

zbMATH Keywords

a priori estimatespseudodifferential operatorshypoellipticityEgorov-Hörmander subellipticity theoremmultiple characteristics of odd order

Mathematics Subject Classification ID

Pseudodifferential operators as generalizations of partial differential operators (35S05) Geometric theory, characteristics, transformations in context of PDEs (35A30) Hypoelliptic equations (35H10)

Related Items (1)

On a criterion for hypoellipticity

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