Universal star products

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2008-04-08

arxiv.org/abs/0804.1300v1

Mathematics

Symplectic Geometry

To appear in Letters in Mathematical Physics

Scientific paper

10.1007/s11005-008-0240-0

One defines the notion of universal deformation quantization: given any manifold $M$, any Poisson structure $\P$ on $M$ and any torsionfree linear connection $\nabla$ on $M$, a universal deformation quantization associates to this data a star product on $(M,\P)$ given by a series of bidifferential operators whose corresponding tensors are given by universal polynomial expressions in the Poisson tensor $\P$, the curvature tensor $R$ and their covariant iterated derivatives. Such universal deformation quantization exist. We study their unicity at order 3 in the deformation parameter, computing the appropriate universal Poisson cohomology.

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