The Kontsevich graph orientation morphism revisited
Abstract
The orientation morphism associates differential-polynomial flows on spaces of bi-vectors on finite-dimensional affine manifolds with (sums of) finite unoriented graphs with ordered sets of edges and without multiple edges and one-cycles. It is known that -cocycles with respect to the vertex-expanding differential are mapped by to Poisson cocycles , that is, to infinitesimal symmetries of Poisson bi-vectors . The formula of orientation morphism was expressed in terms of the edge orderings as well as parity-odd and parity-even derivations on the odd cotangent bundle over any -dimensional affine real Poisson manifold . We express this formula in terms of (un)oriented graphs themselves, i.e. without explicit reference to supermathematics on .
Cite
@article{arxiv.1904.13293,
title = {The Kontsevich graph orientation morphism revisited},
author = {Arthemy V. Kiselev and Ricardo Buring},
journal= {arXiv preprint arXiv:1904.13293},
year = {2021}
}
Comments
Int. workshop on Homotopy algebras, deformation theory and quantization (16-22 September 2018, Bedlewo, Poland), to appear in Banach Center Publications; 5 figures, 18 pages