SMS scnews item created by Anna Romanov at Tue 17 Sep 2019 1053
Type: Seminar
Modified: Tue 17 Sep 2019 1054
Distribution: World
Calendar1: 20 Sep 2019 1430-1630
CalLoc1: Quad S225
CalTitle1: Cliff - An introduction to sheaves on stacks
Auth: romanova@ (arom8272) in SMS-SAML

Informal Friday Seminar: Cliff -- An introduction to sheaves on stacks

We will review/learn the definition of a stack, and practice with examples, including
quotient stacks.  Then we will discuss how to define sheaves on stacks (both ordinary
and dg versions), and will unwind the definitions in our quotient stack examples to
recover the notion of equivariant sheaves on varieties with G-action.  (For example,
when the variety is a point with the trivial G-action, these are just representations of

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