Morita classes in the homology of automorphism groups of free groups.
Multiplicative stability for the cohomology of finite Chevalley groups.
Nielsen Equivalence of Presentations of Some Solvable Groups.
Nielsensche Realisierungssätze für Seifertfaserungen.
Non-abelian cohomology of groups.
Non-abelian cohomology with coefficients in crossed bimodules.
Normal p-Subgroups in the Group of Outer Automorphisms of a Finite p-Group.
On a covering group theorem and its applications.
On a New Characterization of Demuskin Groups.
On Amalgamated Products of Profinite Groups.
On bounded cohomology of amalgamated products of groups.
On categorical crossed modules.
On cohomological periodicity for infinite groups.
On Cohomological Periodicity of ZG-Lattices.
On dimensions in Bredon homology.
On finite groups acting on acyclic complexes of dimension two.
We conjecture that every finite group G acting on a contractible CW-complex X of dimension 2 has at least one fixed point. We prove this in the case where G is solvable, and under this additional hypothesis, the result holds for X acyclic.
On finite subgroups of groups of type VF.
On generalized homology of Artin groups.
On group homomorphisms including mod-p cohomology isomorphisms.
On groups with property