6533b85afe1ef96bd12b9271

RESEARCH PRODUCT

CHEVALLEY COHOMOLOGY FOR KONTSEVICH'S GRAPHS

Didier ArnalAngela GammellaMohsen Masmoudi

subject

Mathematics::K-Theory and Homology[MATH.MATH-MP]Mathematics [math]/Mathematical Physics [math-ph]Mathematics::Quantum AlgebraMathematics::Rings and Algebras[ MATH.MATH-MP ] Mathematics [math]/Mathematical Physics [math-ph][MATH.MATH-MP] Mathematics [math]/Mathematical Physics [math-ph]Mathematics::Representation TheoryMathematics::Algebraic Topology

description

We introduce the Chevalley cohomology for the graded Lie algebra of polyvector fields on $R^d$. This cohomology occurs naturally in the problem of construction and classification of fomalities on the sapce $ R^d$. Considering only graphs formalities, we define the Chevalley cohomology directly on spaces of graphs. We obtain some simple expressions for the Chevalley coboundary operator and we give examples and applications.

https://hal.archives-ouvertes.fr/hal-00092521/document