Invariant star-products on S^2 and the canonical trace

Details Invariant star-products on S^2 and the canonical trace Invariant star-products on S^2 and the canonical trace

2004-02-04

arxiv.org/abs/hep-th/0402031v1

Lett.Math.Phys. 70 (2004) 109-120

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, LaTeX

Scientific paper

10.1007/s11005-004-4290-7

In the literature there are two different ways of describing an invariant
star product on $S^2$. We show that the products are actually the same. We also
calculate the canonical trace and use the Fedosov-Nest-Tsygan index theorem to
obtain the characteristic class of this product.

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