Perverse sheaves on infinite-dimensional stacks, and affine Springer
theory
A. Bouthier, D. Kazhdan, and Y. Varshavsky. (2020)cite arxiv:2003.01428Comment: 137 pages, comments are welcome, v.2,3: references corrected, v 4, minor revision.
Abstract
The goal of this work is to construct a perverse t-structure on the
infinity-category of l-adic LG-equivariant sheaves on the loop Lie algebra Lg
and to show that the affine Grothendieck-Springer sheaf S is perverse.
Moreover, S is an intermediate extension of its restriction to the locus of
"compact" elements with regular semi-simple reduction. Note that classical
methods do not apply in our situation because LG and Lg are
infinite-dimensional ind-schemes.
Description
Perverse sheaves on infinite-dimensional stacks, and affine Springer theory
%0 Generic
%1 bouthier2020perverse
%A Bouthier, Alexis
%A Kazhdan, David
%A Varshavsky, Yakov
%D 2020
%K perverse
%T Perverse sheaves on infinite-dimensional stacks, and affine Springer
theory
%U http://arxiv.org/abs/2003.01428
%X The goal of this work is to construct a perverse t-structure on the
infinity-category of l-adic LG-equivariant sheaves on the loop Lie algebra Lg
and to show that the affine Grothendieck-Springer sheaf S is perverse.
Moreover, S is an intermediate extension of its restriction to the locus of
"compact" elements with regular semi-simple reduction. Note that classical
methods do not apply in our situation because LG and Lg are
infinite-dimensional ind-schemes.
@misc{bouthier2020perverse,
abstract = {The goal of this work is to construct a perverse t-structure on the
infinity-category of l-adic LG-equivariant sheaves on the loop Lie algebra Lg
and to show that the affine Grothendieck-Springer sheaf S is perverse.
Moreover, S is an intermediate extension of its restriction to the locus of
"compact" elements with regular semi-simple reduction. Note that classical
methods do not apply in our situation because LG and Lg are
infinite-dimensional ind-schemes.},
added-at = {2020-06-03T08:55:00.000+0200},
author = {Bouthier, Alexis and Kazhdan, David and Varshavsky, Yakov},
biburl = {https://www.bibsonomy.org/bibtex/2356070bb53637aec920c460aff8aeba3/simonechiarello},
description = {Perverse sheaves on infinite-dimensional stacks, and affine Springer theory},
interhash = {fea0af6cb8e189922e9e70e651257501},
intrahash = {356070bb53637aec920c460aff8aeba3},
keywords = {perverse},
note = {cite arxiv:2003.01428Comment: 137 pages, comments are welcome, v.2,3: references corrected, v 4, minor revision},
timestamp = {2020-06-03T08:55:00.000+0200},
title = {Perverse sheaves on infinite-dimensional stacks, and affine Springer
theory},
url = {http://arxiv.org/abs/2003.01428},
year = 2020
}