Deformation quantization using groupoids. Case of toric manifolds

Details Deformation quantization using groupoids. Case of toric manifolds Deformation quantization using groupoids. Case of toric manifolds

2003-05-18

arxiv.org/abs/math/0305261v2

Mathematics

Operator Algebras

20 pages

Scientific paper

In the framework of C*-algebraic deformation quantization we propose a notion of deformation groupoid which could apply to known examples e.g. Connes' tangent groupoid of a manifold, its generalisation by Landsman and Ramazan, Rieffel's noncommutative torus, and even Landi's noncommutative 4-sphere. We construct such groupoid for a wide class of T^n-spaces, that generalizes the one given for C^n by Bellissard and Vittot. In particular, using the geometric properties of the moment map discovered in the '80s by Atiyah, Delzant, Guillemin and Sternberg, it provides a \cstar-algebraic deformation quantization for all toric manifolds, including the 2-sphere and all complex projective spaces.

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