English

Mukai duality for gerbes with connection

Quantum Algebra 2009-01-10 v2 Algebraic Geometry

Abstract

We study gerbes with connection over an etale stack via noncommutative algebras of differential forms on a groupoid presenting the stack. We then describe a dg-category of modules over any such algebra, which we claim represents a dg-enhancement of the derived category of coherent analytic sheaves on the gerbe in question. This category can be used to phrase and prove Fourier-Mukai type dualities between gerbes and other noncommutative spaces. As an application of the theory, we show that a gerbe with flat connection on a torus is dual (in a sense analogous to Fourier-Mukai duality or T-duality) to a noncommutative holomorphic dual torus.

Keywords

Cite

@article{arxiv.0803.1529,
  title  = {Mukai duality for gerbes with connection},
  author = {Jonathan Block and Calder Daenzer},
  journal= {arXiv preprint arXiv:0803.1529},
  year   = {2009}
}

Comments

Final version. To appear in Crelle's journal

R2 v1 2026-06-21T10:20:24.702Z