Pierre Guillot

activity

20042023

most citedCohomology of invariant Drinfeld twists on group algebras

23 citations · 79 across the 17 of their papers we have counts for

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3 papers · 1 filter

math.AG2006

Geometric methods for cohomological invariants

Pierre Guillot

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…

math.AG2005

The Chow rings of $G_{2}$ and $S p i n_{7}$

Pierre Guillot

We compute $C H^{*} B G_{2}$ and $C H^{*} B S p i n_{7}$ , using in particular the stratification method introduced by Vezzosi. We also give some information on the Chow rings of the finite groups $…

math.AG2004

Steenrod operations on the Chow ring of a classifying space

Pierre Guillot

We use the Steenrod algebra to study $C H^{*} B G$ , the mod $p$ Chow ring of the classifying space of $G$ . We describe a localization property which relates a given $G$ to its elementar…

Geometric methods for cohomological invariants

The Chow rings of G2​ and Spin7​

Steenrod operations on the Chow ring of a classifying space

The Chow rings of $G_{2}$ and $S p i n_{7}$