Splittings of Poincaré Duality Groups.
SQ-универсальность свободных произведений с объединенными конечными подгруппами
Stabilization for the automorphisms of free groups with boundaries.
Stable actions of groups on real trees.
Stable rational cohomology of automorphism groups of free groups and the integral cohomology of moduli spaces of graphs.
It is not known whether or not the stable rational cohomology groups H*(Aut(F∞);Q) always vanish (see Hatcher in [5] and Hatcher and Vogtmann in [7] where they pose the question and show that it does vanish in the first 6 dimensions). We show that either the rational cohomology does not vanish in certain dimensions, or the integral cohomology of a moduli space of pointed graphs does not stabilize in certain other dimensions. Similar results are stated for groups of outer automorphisms. This yields...
String Matching And Algorithmic Problems In Free Groups.
Strong boundedness and algebraically closed groups
Let be a non-trivial algebraically closed group and be a subset of generating in infinitely many steps. We give a construction of a binary tree associated with . Using this we show that if is -existentially closed then it is strongly bounded.
Strong Tits alternative for subgroups of Coxeter groups.
Structure and Regidity in Hyperbolic Groups. I.
Structure of a group with elements of order at most 4.
Structure of group invariants of a quasiperiodic flow.
Structure of unitary groups over finite group rings and its application
In this paper, we determine all the normal forms of Hermitian matrices over finite group rings , where , is a commutative -group with order . Furthermore, using the normal forms of Hermitian matrices, we study the structure of unitary group over through investigating its BN-pair and order. As an application, we construct a Cartesian authentication code and compute its size parameters.
Su certe classi di gruppi unipotenti
Si presentano alcuni risultati che caratterizzano i gruppi algebrici unipotenti aventi come reticolo dei sottogruppi connessi una catena e si discutono alcuni risultati conseguenti.
Su una classe di gruppi con molti sottogruppi quasinormali
Su una generazione del gruppo simplettico modulare di Siegel-Conforto
Subgroup growth and congruence subgroups.
Subgroup Lattices for Crystallographic Groups
Subgroup separability and conjugacy separability of certain HNN extensions.
Subgroups and normal subgroups as systems of ideals
Subgroups normalized by the commutator subgroup of the Levi subgroup.