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Functorial quantization and the Guillemin-Sternberg conjecture

N. P. Landsman
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Abstract

We propose that geometric quantization of symplectic manifolds is the arrow part of a functor, whose object part is deformation quantization of Poisson manifolds. The `quantization commutes with reduction' conjecture of Guillemin and Sternberg then becomes a special case of the functoriality of quantization. In fact, our formulation yields almost unlimited generalizations of the Guillemin--Sternberg conjecture, extending it, for example, to arbitrary Lie groups or even Lie groupoids. Technically, this involves symplectic reduction and Weinstein's dual pairs on the classical side, and Kasparov's bivariant K-theory for C*-algebras (KK-theory) on the quantum side.

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N. P. Landsman. 2003-07-29. Functorial quantization and the Guillemin-Sternberg conjecture. https://arxiv.org/abs/math-ph/0307059

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