Geometric methods for cohomological invariants

  • Pierre Guillot

    Université Louis Pasteur 7, rue René Descartes 67000 Strasbourg France
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Abstract

We explain how to exploit Rost's theory of Chow groups with coefficients to carry some computations of cohomological invariants. In particular, we use the idea of the «stratification method» introduced by Vezzosi. We recover a number of known results, with very different proofs. We obtain some new information on spin groups.

Cite this article

Pierre Guillot, Geometric methods for cohomological invariants. Doc. Math. 12 (2007), pp. 521–545

DOI 10.4171/DM/233