Geometric methods for cohomological invariants
| dc.creator | Guillot, Pierre | |
| dc.date | 2006-12-12 | |
| dc.date | 2007-11-14 | |
| dc.date.accessioned | 2026-07-07T08:42:44Z | |
| dc.date.available | 2026-07-07T08:42:44Z | |
| dc.description | We explain how to exploit Rost's theory of Chow groups with coefficients to carry some computations of cohomological invariants (i.e. characteristic classes for G-torsors in Galois cohomology, for an algebraic group G). 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.. | |
| dc.description | Accepted for publication in Documenta Mathematica | |
| dc.identifier | https://arxiv.org/abs/math/0612323 | |
| dc.identifier | http://arxiv.org/abs/math/0612323 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/142069 | |
| dc.subject | Algebraic Geometry | |
| dc.subject | Group Theory | |
| dc.title | Geometric methods for cohomological invariants | |
| dc.type | text |