Geodesic
Geometric methods for cohomological invariants
Documenta mathematica, Tome 12 (2007), pp. 521-545
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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.
DOI : 10.4171/dm/233
Mots-clés : algebraic cycles, cohomological invariants 
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     author = {Pierre Guillot},
     title = {Geometric methods for cohomological invariants},
     journal = {Documenta mathematica},
     pages = {521--545},
     year = {2007},
     volume = {12},
     doi = {10.4171/dm/233},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/233/}
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Pierre Guillot. Geometric methods for cohomological invariants. Documenta mathematica, Tome 12 (2007), pp. 521-545. doi: 10.4171/dm/233

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