Methods of Equivariant Quantization
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This article is a survey of recent work of the authors developing a new approach to quantization based on the equivariance with respect to some Lie group of symmetries. Examples are provided by conformal and projective differential geometry: given a smooth manifold M endowed with a flat conformal/projective structure, we establish a canonical isomorphism between the space of symmetric contravariant tensor fields on M and the space of differential operators on M. This leads to a notion of conformally/projectively invariant star-product on $T^*M$.
14 pages, LaTeX; Proc. of the workshop "Noncommutative Differential Geometry and its Applications to Physics", Shonan-Kokusaimura, Japan, May 31-June 4, 1999
14 pages, LaTeX; Proc. of the workshop "Noncommutative Differential Geometry and its Applications to Physics", Shonan-Kokusaimura, Japan, May 31-June 4, 1999