BIRS Workshop Lecture Videos

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BIRS Workshop Lecture Videos

Characteristic polynomials and TR with coefficients Nikolaus, Thomas


We define Witt vectors for non-commutative rings (following Hesselholt) and characteristic polynomials for endomorphism over non-commutative rings. This is the \pi_0-Effekt of a certain refinement of the cyclotomic trace with values in TR. We also explain how to give a 'motivic' picture of TR with coefficients refining work of Lindenstrauss-McCarthy.

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