An application of the almost-positivity of a class of fourth-order pseudodifferential operators

DOI10.1007/BF02788021zbMath0883.35139MaRDI QIDQ1361052

Alberto Parmeggiani

Publication date: 23 March 1998

Published in: Journal d'Analyse Mathématique (Search for Journal in Brave)

zbMATH Keywords

principal symbolWeyl symbolpseudodifferential operator of order 1pseudodifferential operator of order 2

Mathematics Subject Classification ID

Pseudodifferential operators as generalizations of partial differential operators (35S05) General theory of partial differential operators (47F05)

Related Items (1)

Local solvability for \(\square_b\) on degenerate CR manifolds and related systems

Cites Work

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• Hypoellipticité maximale pour des opérateurs polynômes de champs de vecteurs. (Maximal hypoellipticity for polynomial operators of vector fields)
• Hypoelliptic differential operators and nilpotent groups
• Hölder estimates on CR manifolds with a diagonalizable Levi form
• A necessary and sufficient condition for a lower bound for fourth-order pseudodifferential operators
• Estimates for the \documentclass{article}\pagestyle{empty}\begin{document}$ \mathop \partial \limits^ - _b $\end{document} complex and analysis on the heisenberg group
• The Neumann Problem for the Cauchy-Riemann Complex. (AM-75)
• Lower bounds for pseudo-differential operators

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