September 14 -18, 2015
| 
                       The series of conferences named « GAGTA » is devoted to the confrontation of several viewpoints on the theory of infinite groups: geometric, combinatorial, asymptotic and probabilistic, algorithmic and computational. Topics discussed at these conferences include group actions; growth and isoperimetric functions and other asymptotic invariants; random walks; algebraic geometry on groups; algorithmic properties and their complexity; generic properties and more generally generic complexity; and applications of group theory, notably to non-commutative cryptography. 
All these topics place the GAGTA conferences at a meeting point between algebra, topology and geometry, and more and more frequently, at a meeting point also with probability theory and asymptotic methods. Many of the topics discussed at these conferences have deep roots in the classical theory of groups and especially its links with geometry. We can cite also, among the results or the theories that have played an important role in the genesis of the GAGTA conferences, M. Gromov’s results at the beginning of the 1980s, the solution of Tarski’s problem by Z. Sela and by A. Miasnikov and O. Kharlampovich, and more recently the theory of relatively hyperbolic groups developed by M. Gromov, Yu. Ol’shanskii, D. Osin and other mathematicians. The 2015 edition of the conference, the ninth GAGTA and the first to be held in France, will of course rely on the fundamentals of the series; but it will additionally give a special emphasis to the contributions of asymptotic theory; the algorithmic aspects of group theory; and its connections with computer science.  | 
 Scientific Committee 
 
Goulnara Arzhantseva (University of Vienna) Organizing Committee Thierry Coulbois (Aix-Marseille Université) Speakers 
 Almost commuting permutations are near commuting permutations 
 Random graphs and applications to Coxeter groups 
 Solubility and geometry for finitely generated groups of piecewise-linear homeomorphisms 
 
 Embeddability between right-angled Artin groups and its relation to model theory and geometry 
 Primitive elements in low-index subgroups of finitely generated groups 
 Formal conjugacy growth and hyperbolicity 
 Sofic profile 
 Multifraction reduction in gcd-monoids 
 Stallings foldings for Zm x Fn 
 EDT0L-like description of the solution sets for a word equations over RAAGs 
 Solution sets for equations over free groups are EDT0L languages 
 Groups with the property R infinite 
 The planar Cayley graphs are effectively enumerable 
 Quadratic equations in self similar groups 
 Higher divergence functions for Heisenberg Groups 
 On a class of Artin groups 
 Conjugacy Problem in Polycyclic and Metabelian Groups: Algorithms and Complexity 
 On some classes of Coxeter- and Artin-like groups 
 On limit groups over partially commutative groups 
 Model Theory of groups and algebras 
 Path lifting properties and embedding between RAAGs 
 Induced automorphisms 
 Algorithmic double personality of finitely generated nilpotent groups 
 Substitutional dynamics associated with Grigorchuk’s group 
 Invariant random subgroups of acylindrically hyperbolic groups 
 From automatic semigroups to automaton semigroups 
 Hilbert’s Nullstellensatz in algebraic geometry over rigid solvable groups 
 CSA and CT groups and related topics 
 On subgroups of the R. Thompson group F 
 Semigroups of linear functions 
 Extending endomorphisms of hyperbolic groups to the boundary 
 Lattices, superrigidity and surfaces 
 The degree of commutativity of an infinite group 
 The 
 An analogue of the curve complex for Garside groups 
 Fixed subgroups are compressed in surface groups 
 Hausdor dimension of boundaries of relatively hyperbolic groups 
 Kurosh rank of intersection of subgroups in groups acting 
 Random walks on random symmetric groups  |