Projectively and conformally invariant star-products

Details Projectively and conformally invariant star-products Projectively and conformally invariant star-products

2003-01-07

arxiv.org/abs/math/0301052v2

Mathematics

Quantum Algebra

37 pages, Latex; minor corrections

Scientific paper

10.1007/s00220-003-0973-7

We consider the Poisson algebra S(M) of smooth functions on T^*M which are fiberwise polynomial. In the case where M is locally projectively (resp. conformally) flat, we seek the star-products on S(M) which are SL(n+1,R) (resp. SO(p+1,q+1))-invariant. We prove the existence of such star-products using the projectively (resp. conformally) equivariant quantization, then prove their uniqueness, and study their main properties. We finally give an explicit formula for the canonical projectively invariant star-product.

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