Generators of an orthogonal group over a finite field
Generators of order two for and three of its double covers.
Generators of order two for and its two double covers.
Generic result for the existence of a free semi-group
Geodesic automation and growth functions for Artin groups of finite type.
Geometric actions of surface groups on ...-trees.
Geometric quasi-isometric embeddings into Thompson's group .
Geometric subgroups of surface braid groups
Let be a surface, let be a subsurface, and let be two positive integers. The inclusion of in gives rise to a homomorphism from the braid group with strings on to the braid group with strings on . We first determine necessary and sufficient conditions that this homomorphism is injective, and we characterize the commensurator, the normalizer and the centralizer of in . Then we calculate the commensurator, the normalizer and the centralizer of in for large surface braid...
Geometrically constructed bases for homology of non-crossing partition lattices.
Geometry and analytic theory of Frobenius manifolds.
Geometry of Free Products.
Geometry of pseudocharacters.
Gleichungen in freien Produkten mit Amalgam.
Global rigidity of solvable group actions on .
Gradients de Heegaard sous-logarithmiques d’une variété hyperbolique de dimension trois et fibres virtuelles
J. Maher a montré qu’une variété hyperbolique de dimension compacte sans bord, connexe et orientable fibre virtuellement sur le cercle si et seulement si elle admet une famille infinie de revêtements finis de genre de Heegaard borné. En s’appuyant sur la démonstration de Maher, cet article présente un théorème donnant une condition suffisante pour qu’un revêtement fini d’une variété hyperbolique compacte de dimension contienne une fibre virtuelle, qui s’exprime en fonction du degré du revêtement...
Graph representations of finite Abelian groups
Graphes planaires et présentations des groupes de tresses.
Graphs which are locally Grassmann.
Green functions and a conjecture of Geck and Malle.
Group algebras with centrally metabelian unit groups.
Given a field K of characteristic p > 2 and a finite group G, necessary and sufficient conditions for the unit group U(KG) of the group algebra KG to be centrally metabelian are obtained. It is observed that U(KG) is centrally metabelian if and only if KG is Lie centrally metabelian.