English

Twisted geometric Langlands correspondence for a torus

Representation Theory 2016-04-29 v4

Abstract

Let T be a split torus over local or global function field. The theory of Brylinski-Deligne gives rise to the metaplectic central extensions of T by a finite cyclic group. The representation theory of these metaplectic tori has been developped to some extent in the works of M. Weissman, G. Savin, W. T. Gan, P. McNamara and others. In this paper we propose a geometrization of this theory in the framework of the geometric Langlands program (in the everywhere nonramified case).

Keywords

Cite

@article{arxiv.1312.4310,
  title  = {Twisted geometric Langlands correspondence for a torus},
  author = {Sergey Lysenko},
  journal= {arXiv preprint arXiv:1312.4310},
  year   = {2016}
}

Comments

35 pages, v4: minor corrections

R2 v1 2026-06-22T02:28:17.539Z