Globalizing L-infinity automorphisms of the Schouten algebra of polyvector fields

Details Globalizing L-infinity automorphisms of the Schouten algebra of polyvector fields Globalizing L-infinity automorphisms of the Schouten algebra of polyvector fields

2012-01-06

arxiv.org/abs/1201.1392v1

Mathematics

Quantum Algebra

11 pages

Scientific paper

Recently, Willwacher showed that the Grothendieck-Teichmuller group GRT acts by L-infinity-automorphisms on the Schouten algebra of polyvector fields T_poly(R^d) on affine space R^d. In this article, we prove that a large class of L-infinity-automorphisms on the Schouten algebra, including Willwacher's, can be globalized. That is, given an L-infinity-automorphism of T_poly(R^d) and a general smooth manifold M with the choice of a torsion-free connection, we give an explicit construction of an L-infinity-automorphism of the Schouten algebra T_poly(M) on the manifold M, depending on the chosen connection. The method we use is the Fedosov trick.

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