Upcoming Talks

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K-theory and motivic cohomology of singularities


Date: Thursday, February 24, 2022 13:00 - 15:00
Speaker: Elden Elmanto (Harvard University)
Location: Heinzel Seminar Room (I21.EG.101), Office Building West
Series: Mathematics and CS Seminar
Host: Tamas Hausel

The cdh topology, introduced by Suslin and Voevodsky in the 90's, is a Grothendieck topology on schemes, finite type over an arbitrary field k. Assuming resolution of singularities on k, every such scheme is "locally smooth." I will report on joint with Tom Bachmann and Matthew Morrow on how to make efficient use of the cdh topology, without assuming resolution of singularities, to analyze algebraic K-theory and algebraic cycles of non-smooth schemes (even in mixed characteristic situations). No knowledge of (higher) K-theory and motivic cohomology will be assumed.

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