Date: Monday, February 07, 2022
Location: 4088 East Hall (4:00 PM to 5:15 PM)
Title: The Steinberg representation of G
Abstract: An algebraic group G is geometrically reductive if for every nonzero Ginvariant vector v in a Grepresentation V, there exists a nonconstant homogeneous Ginvariant polynomial function on V which does not vanish on v. We will see Haboush's proof that every reductive group is geometrically reductive. The main character of this proof is the Steinberg representation; the bulk of the talk will be about this representation.
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Speaker: Karthik Ganapathy
Institution: UM
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