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Weyl calculus and subelliptic operators - MaRDI portal

Weyl calculus and subelliptic operators (Q1318010)

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scientific article; zbMATH DE number 537213
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Weyl calculus and subelliptic operators
scientific article; zbMATH DE number 537213

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    Weyl calculus and subelliptic operators (English)
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    18 October 1994
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    Le but de cet article est d'établir, à l'aide du calcul de Weyl- Hörmander, des estimations sur le symbole de la paramétrixe de la somme des carrés de champs de vecteurs ou d'opérateurs pseudo- différentiels d'ordre 1 dont les crochets de rang 2 forment un système elliptique.
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    Weyl-Hörmander calculus
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    subelliptic operators
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