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SUMMARY:Emanuele Dotto (University of Warwick)
DTSTART:20200518T140000Z
DTEND:20200518T150000Z
DTSTAMP:20260423T035750Z
UID:OATS/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/OATS/4/">Wit
 t vectors with coefficients and characteristic polynomials over non-commut
 ative rings</a>\nby Emanuele Dotto (University of Warwick) as part of Onli
 ne algebraic topology seminar\n\n\nAbstract\nThe characteristic polynomial
  of a matrix with entries in a commutative ring $R$ naturally takes value 
 in the ring of Witt vectors of $R$. In joint work with Krause\, Nikolaus a
 nd Patchkoria\, we extend the classical Witt vectors construction to allow
  as input pairs of a ring $R$ and a bimodule $M$. I will explain how this 
 construction relates to topological Hochschild homology\, the Hill-Hopkins
 -Ravenel norm\, and the characteristic polynomial.\n
LOCATION:https://researchseminars.org/talk/OATS/4/
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