The Ktheory of polynomiallike rings
The Ktheory of polynomiallike rings

Charles Weibel, Rutgers University
Online Talk
We first prove that the Ktheory of a polynomial ring R[x,y,...,z] has a previously unknown raylike decomposition. Then we show that the Ktheory of an affine toric variety over a field (i.e., a polynomiallike ring) has a raylike decomposition as a module over the Witt vectors. As usual, the cohomology proof in characteristic 0 is different from the TC proof in characteristic p.