English

Dunkl operator and quantization of $\mathbb{Z}_2$-singularity

Quantum Algebra 2010-10-01 v2 Differential Geometry

Abstract

Let (X,ω)(X,\omega) be a symplectic orbifold which is locally like the quotient of a Z2\mathbb{Z}_2 action on Rn\reals^n. Let AX(())A^{((\hbar))}_X be a deformation quantization of XX constructed via the standard Fedosov method with characteristic class being ω\omega. In this paper, we construct a universal deformation of the algebra AX(())A^{((\hbar))}_X parametrized by codimension 2 components of the associated inertia orbifold X~\widetilde{X}. This partially confirms a conjecture of Dolgushev and Etingof in the case of Z2\mathbb{Z}_2 orbifolds. To do so, we generalize the interpretation of Moyal star-product as a composition of symbol of pseudodifferential operators in the case where partial derivatives are replaced with Dunkl operators. The star-products we obtain can be seen as globalizations of symplectic reflection algebras.

Keywords

Cite

@article{arxiv.0908.4301,
  title  = {Dunkl operator and quantization of $\mathbb{Z}_2$-singularity},
  author = {Gilles Halbout and Xiang Tang},
  journal= {arXiv preprint arXiv:0908.4301},
  year   = {2010}
}

Comments

24 pages

R2 v1 2026-06-21T13:40:11.117Z