An elementary approach to the mapping class group of a surface.
An existence lemma for groups generated by 3-transpositions.
An expansion of the Jones representation of genus 2 and the Torelli group.
An exterior product for the homology of groups with integral coefficients modulo
An implementation of the Neumann-Praeger algorithm for the recognition of special linear groups.
An improved tableau criterion for Bruhat order.
An infinite collection of absolutely convex subgroups
An infinite-dimensional torsion-free FP...group.
Anelli di coomologia dei gruppi di Artin
Anti-CC-groups and anti-PC-groups.
Anwendungen der Nielsenschen Kürzungsmethode in Gruppen mit einer definierenden Relation.
Applications of Topological Graph Theory for Group Theory.
Arithmetic of stabilizers of ideals in group rings.
Arithmetic properties of the cohomology of Artin groups
Around the Borromean link.
This is a survey of some consequences of the fact that the fundamental group of the orbifold with singular set the Borromean link and isotropy cyclic of order 4 is a universal kleinian group.
Artin Groups and Infinite Coxeter Groups.
Artin-Gruppen und Coxeter-Gruppen.
Aspherical four-manifolds and the centres of two-knot groups.
Aspherical Group Presentations.
Asphericity of symmetric presentations
Using the notion of relative presentation due to Bogley and Pride, we give a new proof of a theorem of Prishchepov on the asphericity of certain symmetric presentations of groups. Then we obtain further results and applications to topology of low-dimensional manifolds.