English

Verlinde formulas for nonsimply connected groups

Symplectic Geometry 2020-01-29 v2

Abstract

In 1999, Fuchs and Schweigert proposed formulas of Verlinde type for moduli spaces of surface group representations in compact nonsimply connected Lie groups. In this paper, we will prove a symplectic version of their conjecture for surfaces with at most one boundary component. A key tool in our computations is Kostant's notion of a maximal torus in apposition.

Keywords

Cite

@article{arxiv.1706.04045,
  title  = {Verlinde formulas for nonsimply connected groups},
  author = {Eckhard Meinrenken},
  journal= {arXiv preprint arXiv:1706.04045},
  year   = {2020}
}

Comments

30 pages, to appear in Kostant Memorial Volume, Progress in Mathematics (Birkhauser)

R2 v1 2026-06-22T20:17:28.458Z