English

Cohomologie de Chevalley des graphes ascendants

Quantum Algebra 2010-04-01 v1

Abstract

The space Tpoly(Rd)T_{poly}(\mathbb R^d) of all tensor fields on Rd\mathbb R^d, equipped with the Schouten bracket is a Lie algebra. The subspace of ascending tensors is a Lie subalgebra of Tpoly(Rd)T_{poly}(\mathbb R^d). In this paper, we compute the cohomology of the adjoint representations of this algebra (in itself and Tpoly(Rd)T_{poly}(\mathbb R^d)), when we restrict ourselves to cochains defined by aerial Kontsevitch's graphs like in our previous work (Pacific J of Math, vol 229, no 2, (2007) 257-292). As in the vectorial graphs case, the cohomology is freely generated by all the products of odd wheels.

Keywords

Cite

@article{arxiv.1003.4191,
  title  = {Cohomologie de Chevalley des graphes ascendants},
  author = {Walid Aloulou and Didier Arnal and Ridha Chatbouri},
  journal= {arXiv preprint arXiv:1003.4191},
  year   = {2010}
}