Published:
[Erscheinungsort nicht ermittelbar]: Institut des Hautes Études Scientifiques (IHÉS), 2015
Published in:Singular support of coherent sheaves ; Vol. 02, (Jan. 2015)
Extent:
1 Online-Ressource (972 MB, 01:50:24:10)
Language:
English
DOI:
10.5446/16351
Identifier:
Origination:
Footnote:
Audiovisuelles Material
Description:
Singular support is an invariant that can be attached to a coherent sheaf on a derived scheme which is quasi-smooth (a.k.a. derived locally complete intersection). This invariant measures how far a given coherent sheaf is from being perfect. We will explain how the subtle difference between "coherent" and "perfect" is responsible for the appearance of Arthur parameters in the context of geometric Langlands correspondence