On the positive parts of second order symmetric pseudodifferential operators

DOI10.1007/s00020-009-1699-5zbMath1184.35317OpenAlexW2031080042MaRDI QIDQ1037196

Fabio Nicola, Marco Mughetti

Publication date: 13 November 2009

Published in: Integral Equations and Operator Theory (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00020-009-1699-5

zbMATH Keywords

pseudodifferential operatorsspectral projectionsmultiple characteristicsFefferman-Phong decomposition

Mathematics Subject Classification ID

Pseudodifferential operators as generalizations of partial differential operators (35S05) General topics in linear spectral theory for PDEs (35P05) Pseudodifferential operators (47G30) Second-order elliptic systems (35J47)

Related Items (2)

Parametrices for pseudodifferential operators with multiple characteristics ⋮ On the Problem of Positivity of Pseudodifferential Systems

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