Analogue d'un lemme de Kohn et Nirenberg
The author establishes an inequality, for some classical pseudo- differential operators \({\mathcal A}\), which is analogous to inequality (A.8) due to \textit{J. J. Kohn} and \textit{L. Nirenberg}. [Commun. Pure Appl. Math. 18, 269-305 (1965; Zbl 0171.351)], namely for \(| {\mathcal A}u,v)|\), when u and v are in \({\mathcal S}(R^ n)\) and have disjoint supports, and \({\mathcal A}\) satisfies given conditions. The present inequality differs by one term from Inequality (A.8).
scientific article; zbMATH DE number 3888249