The Chow ring of the stack of cyclic covers of the projective line
In this paper we compute the integral Chow ring of the stack of smooth uniform cyclic covers of the projective line and we give explicit generators.
The Farrell cohomology of .
The First Cohomology Group of a Line Bundle on G/B.
The homology of special linear groups over polynomial rings
The integral homology of SL2 and PSL2 of euclidean imaginary quadratic integers.
The Schur Multipliers of Sp6(Z),Spin8(Z),Spin7(Z),andF4(Z).
The strong linkage principle.
Topological central extensions of SL1 (D).
Torsion in cohomology of compact Lie groups and Chow rings of reductive algebraic groups.
Trigonometric Sums, Green Functions on Finite Groups and Representation of Weyl Groups.
Troesch complexes and extensions of strict polynomial functors
We develop a new approach of extension calculus in the category of strict polynomial functors, based on Troesch complexes. We obtain new short elementary proofs of numerous classical -computations as well as new results. In particular, we get a cohomological version of the “fundamental theorems” from classical invariant theory for for big enough (and we give a conjecture for smaller values of ). We also study the “twisting spectral sequence” converging to the extension groups between the...
Über die Galoiskohomologie halbeinfacher algebraischer Gruppen. III.
Unipotent Characters of the Sympletic and Odd Orthogonal Groups Over a Finite Field.
Unitary Reflection Groups and Cohomology.
Unstable homotopy invariance for finite fields
We prove that if k is a finite field with elements, then the natural map is an isomorphism for 0 ≤ i < d(p-1) and for all n.
Vanishing of Hochschild cohomology for affine group schemes and rigidity of homomorphisms between algebraic groups.
Variations on a theme of groups splitting by a quadratic extension and Grothendieck-Serre conjecture for group schemes with trivial invariant.
Variété des caractères et slice étale de l'espace des représentations d'un groupe
Weak corestriction principle for non-Abelian Galois cohomology.
Weylgruppe und Momentabbildung.