Abstract
Nous calculons l'homologie et la cohomologie de Hochschild des algebres de Weyl generalisees introduites par V. Bavula. Nous repondons a une question de Bavula-Jordan concernant les generateurs du groupe d'automorphismes d'une telle algebre. Ce calcul explique aussi des resultats connus sur les invariants des algebres de Weyl et des quotients primitifs.
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