Deformation quantization of Fréchet-Poisson algebras: Convergence of the Moyal product. (English) Zbl 0987.53036

Dito, Giuseppe (ed.) et al., Conférence Moshé Flato 1999: Quantization, deformations, and symmetries, Dijon, France, September 5-8, 1999. Volume II. Dordrecht: Kluwer Academic Publishers. Math. Phys. Stud. 22, 233-245 (2000).
From the introduction: Beyond formal deformation quantization, i.e., deformation quantization of Poisson algebras with a formal deformation parameter [F. Bayen, M. Flato, C. Fronsdal, A. Lichnerowicz and D. Sternheimer, Ann. Phys. 111, 61-110 (1978; Zbl 0377.53024) and 111-151 (1978; Zbl 0377.53025)], one can ask whether the formal parameter converges. In this direction, M. Rieffel [Mem. Am. Math. Soc. 506 (1993; Zbl 0798.46053)] presented a notion of strict deformation quantization: deformation quantization with a convergent product in the \(C^*\)-algebra sense. This suggests us opportunities of finding various kind of notions of deformation quantizations with a convergent product for suitable categories of algebras.
The purpose of this paper is to give a notion of deformation quantization corresponding to M. Rieffel’s work [loc. cit.] in the Fréchet categories, and to show that several strange phenomena occur when we treat exponential functions of quadratic forms.
For the entire collection see [Zbl 0949.00040].


53D55 Deformation quantization, star products
81S10 Geometry and quantization, symplectic methods