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math.KT2011
The Motivic Cohomology of Stiefel Varieties
Ben Williams
The main result of this paper is a computation of the motivic cohomology of varieties of n \times m-matrices of of rank m, including both the ring structure and the action of the r…
math.KT2011★ 21 cited
The period-index problem for twisted topological K-theory
Benjamin Antieau, Ben Williams
We introduce and solve a period-index problem for the Brauer group of a topological space. The period-index problem is to relate the order of a class in the Brauer group to the deg…