English

The basic gerbe over a compact simple Lie group

Differential Geometry 2011-11-10 v3 Symplectic Geometry

Abstract

Let GG be a compact, simply connected simple Lie group. We give a construction of an equivariant gerbe with connection on GG, with equivariant 3-curvature representing a generator of HG3(G,Z)H^3_G(G,\Z). Technical tools developed in this context include a gluing construction for gerbes and a theory of equivariant bundle gerbes.

Keywords

Cite

@article{arxiv.math/0209194,
  title  = {The basic gerbe over a compact simple Lie group},
  author = {Eckhard Meinrenken},
  journal= {arXiv preprint arXiv:math/0209194},
  year   = {2011}
}

Comments

19 pages. To appear in L'Enseignement Mathematique