English

Localization of cohomological induction

Representation Theory 2013-06-12 v2

Abstract

We give a geometric realization of cohomologically induced (g,K)-modules. Let (h,L) be a subpair of (g,K). The cohomological induction is an algebraic construction of (g,K)-modules from a (h,L)-module V. For a real semisimple Lie group, the duality theorem by Hecht, Milicic, Schmid, and Wolf relates (g,K)-modules cohomologically induced from a Borel subalgebra with D-modules on the flag variety of g. In this article we extend the theorem for more general pairs (g,K) and (h,L). We consider the tensor product of a D-module and a certain module associated with V, and prove that its sheaf cohomology groups are isomorphic to cohomologically induced modules.

Keywords

Cite

@article{arxiv.1207.6315,
  title  = {Localization of cohomological induction},
  author = {Yoshiki Oshima},
  journal= {arXiv preprint arXiv:1207.6315},
  year   = {2013}
}

Comments

24 pages, typos corrected

R2 v1 2026-06-21T21:42:05.362Z