How to glue parity sheaves
Algebraic Geometry
2020-05-04 v2 Representation Theory
Abstract
Let X be a stratified space on which the Juteau-Mautner-Williamson theory of parity sheaves is available. We develop a "nearby cycles formalism" in the framework of the homotopy category of parity sheaves on X, also known as the mixed modular derived category of X. This construction is expected to have applications in modular geometric representation theory.
Cite
@article{arxiv.1812.07920,
title = {How to glue parity sheaves},
author = {Pramod N. Achar},
journal= {arXiv preprint arXiv:1812.07920},
year = {2020}
}
Comments
38 pages. v2: minor corrections and clarifications