Summary: QUANTIZATION OF SYMPLECTIC REDUCTION
Abstract. Symplectic reduction, also known as Marsden-Weinstein reduction, is an important
construction in Poisson geometry. Following N.P. Landsman , we propose a quantization of
this procedure by means of M. Rieffel's theory of induced representations. Here to an equivariant
momentum map there corresponds an operator-valued rigged inner product. We define the operator-
algebraic notions that are involved in this construction, and give a number of examples.
Acknowledgements: This report is mainly based on a series of papers by N. Landsman ([19, 20,
21, 23] and especially ). I also would like to thank Prof. Rieffel for a helpful discussion. And of
course many ideas in this report have been touched upon in Prof. Weinstein's course.
Added in print: (1) The contemporary name for the structure with the rigged inner product is a
Hilbert module. (2) Some related articles are: Survey of Strict Deformation Quantization by Bina
Bhattacharyya (written for the same course, http://math.berkeley.edu/~alanw/242papers.html),
and Morita Equivalence in Algebra and Geometry by Ralf Meyer, Von Neumann Algebras and Pois-
son Manifolds by Dimitri Shlyakhtenko, both written for Prof. Weinstein's course Geometric Models
for Noncommutative Algebras, http://math.berkeley.edu/~aweinst/277papers/277papers.html.
Symplectic reduction [1, 12, 28] (also known as Marsden-Weinstein reduction) is one of the basic
constructions in symplectic geometry. Given a Lie group G and a hamiltonian action of G on a
symplectic manifold S, one gets a momentum mapping J : S g from S to the dual of the Lie