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"Geometry and Analysis on Groups" Research Seminar

Goulnara Arzhantseva and Damian Osajda
Dienstag, 15:00--17:00, Raum D1.01 UZA 4

Supported by the ERC grant of Goulnara ARZHANTSEVA: ANALYTIC no. 259527, "Analytic properties of infinite groups: limits, curvature, and randomness"

The first hour (15:00--16:00) of every seminar is an introductory lecture explaining basic notions that are going to appear during the second hour (16:00--17:00)---the regular research seminar presenting recent developments within Geometric Group Theory and related fields.

Schedule for 2013:

18.06 Erik Guentner (University of Hawaii), "A differential complex for CAT(0) cubical spaces" Abstract

11.06 Rufus Willett (University of Hawaii), "Expanders and ghost projections." Abstract
28.05 Jan Spakula (Universitat Wien), "Uniformly bounded representations of hyperbolic groups." Abstract
14.05 Hiroki Matui (Chiba University), "Topological full groups of etale groupoids." Abstract
7.05 Federico Berlai (UniversitĂ¤t Wien), "Scale function and topological entropy in locally compact totally disconnected groups." Abstract
23.04 Rudolf Zeidler (UniversitĂ¤t Wien), "Outer automorphisms of hyperbolic groups with property (T)." Abstract Lecture notes
16.04 Simone Virili (UA Barcelona), "(Co)Hopficity of representations of an infinite group." Abstract
9.04 Yago Antolin (UniversitĂŠ de NeuchĂ˘tel), "Automorphisms of groups with hyperbolically embedded subgroups." Abstract
19.03 Ashot Minasyan (University of Southampton), "Hyperbolically embedded subgroups in groups acting on trees and in graph products."Abstract
5.03 Ilya Kazachkov (University of Oxford), "From real trees to real cubings." Abstract
30.01 Liviu Paunescu (UniversitĂ¤t Wien), "Linear sofic groups and algebras."Abstract
23.01 Alexandre Martin (UniversitĂŠ de Strasbourg), "Construction of boundaries for non-positively curved complexes of groups."Abstract
9.01 Marc Bourdon (UniversitĂŠ de Lille 1), "Some applications of $\ell_p$-cohomology to boundaries of Gromov hyperbolic spaces."Abstract

Schedule for 2012:

12.12 John Mackay (University of Oxford), "Quasi-hyperbolic planes in relatively hyperbolic groups." Abstract
5.12 Victor Chepoi (UniversitĂŠ de la MediterranĂŠe), "Colouring hyperplanes of CAT(0) cube complexes."Abstract
28.11 Christopher Cashen (UniversitĂ¤t Wien), "Line patterns and quasi-isometries of graphs of groups." Abstract
21.11 Matthew T. Clay (University of Arkansas), "Turn graphs and extremal surfaces." Abstract
14.11 Jacek Swiatkowski (Uniwersytet Wroclawski), "Topology of the Gromov boundary of free product of hyperbolic groups." Abstract
7.11 (Mathematisches Kolloquium, 16:15, room C209) Ruth Charney (Brandeis University), "Boundaries of spaces of non-positive curvature." Abstract
7.11 Ruth Charney (Brandeis University), "Outer space for right-angled Artin groups." Abstract
31.10 Roger Gomez Ortells (UniversitĂ¤t Wien), "On compactly supported cohomology of systolic pseudomanifolds." Abstract
24.10 (Mathematisches Kolloquium, 16:15, room C209) Tadeusz Januszkiewicz (Polish Academy of Sciences), "A twin of the braid group." Abstract
24.10 Tadeusz Januszkiewicz (Polish Academy of Sciences), "Fundamental groups of iterated blowups." Abstract
17.10 Alexandra Pettet (University of British Columbia), "Relative twisting in Outer space."Abstract
10.10 Wolfgang Woess (TU Graz), "Horocyclic products of trees." Abstract
26.06 Goulnara Arzhantseva (UniversitĂ¤t Wien), "Infinitely presented groups satisfying Baum-Connes conjectures." Abstract
12.06 Masato Mimura (UniversitĂŠ de NeuchĂ˘tel), "Property (TT)/T and homomorphism superrigidity into mapping class groups." Abstract
5.06 Bernhard KrĂśn (UniversitĂ¤t Wien), "Vertex cuts." Abstract
22.05 Swiatoslaw R. Gal (Uniwersytet Wroclawski), "Dynamics, growth of cocycles, and distorted elements." Abstract
15.05 Liviu Paunescu (UniversitĂ¤t Wien), "Indecomposable sofic approximations." Abstract
9.05 (Exceptional! 14:00, room D 104, UZA 4) Henry Segerman (University of Melbourne), "A generalisation of the deformation variety" Abstract
8.05 FranĂ§ois Gautero (UniversitĂŠ de Nice), "Gromov's a-T-menability and free-by-free groups." Abstract
24.04 Markus Steenbock (UniversitĂ¤t Wien), "Graphical random groups." Abstract
17.04 Fanny Kassel (UniversitĂŠ de Lille 1), "Discrete spectrum of the Laplacian on non-Riemannian locally symmetric spaces." Abstract
29.03 (Exceptional! 14:00, room S1, Althanstrasse 12) Bruno Benedetti (KTH Stockholm), "Convex triangulations"Abstract
20.03 Cornelia Drutu Badea (Oxford), "Equivalent notions of rank for manifolds of non-positive curvature and for mapping class groups of surfaces."Abstract
13.03 Alessandra Iozzi (ETH ZĂźrich), "Unitary representations" (introductory) and "Multiplicative representations of virtually free groups" Abstract
6.03 BoĹĄtjan BreĹĄar and Tanja Gologranc (University of Maribor), "Median graphs, algebras and complexes" Abstract
31.01 Dominik Gruber (UniversitĂ¤t Wien), "Graphical small cancellation groups." Abstract
27.01 (Exceptional! 13:00, room C209) Alex Gamburd (CUNY), "Generalization of Selberg's 3/16 Theorem and Affine Sieve." Abstract
26.01 (Mathematisches Kolloquium, 16:15, room C209) Alex Gamburd (CUNY), "Expander Graphs, Thin Groups and Super-strong Approximation." Abstract
24.01 FranĂ§ois GuĂŠritaud (UniversitĂŠ de Lille 1), "Deforming quotients of rank-one groups." Abstract
17.01 Adam Timar (UniversitĂ¤t Wien), "Critical percolation and graph sequences." Abstract

Schedule for 2011:

13.12 Valerio Capraro (UniversitĂŠ de NeuchĂ˘tel), "Topology on locally finite metric spaces" Abstract
6.12 Adam Timar (UniversitĂ¤t Wien), "Quasi-invariant means and Zimmer amenability." Abstract
29.11 Luis Manuel Rivera Martinez (UniversitĂ¤t Wien), "Almost commuting matrices and related topics" Abstract
22.11 Damian Osajda (UniversitĂ¤t Wien), "A construction of highly dimensional hyperbolic Coxeter groups." Abstract
15.11 Markus Steenbock (UniversitĂ¤t Wien), "Torsion-free group without unique product property." Abstract
8.11 Swiatoslaw R. Gal (UniversitĂ¤t Wien), "Reflection length on Coxeter groups."Abstract
18.10 Swiatoslaw R. Gal (UniversitĂ¤t Wien), "Subgroups of Interval Exchange groups." Abstract
11.10 Adam Timar (UniversitĂ¤t Wien), "On the separation profile of infinite graphs."Abstract
28.06 Goulnara Arzhantseva (UniversitĂ¤t Wien), "Introduction to the space of marked groups" and "Finite-dimensional approximations of finitely generated groups."Abstract
21.06 Luis Manuel Rivera Martinez (UniversitĂ¤t Wien), "Weakly-sofic groups."Abstract
16.06 Bernhard KrĂśn (UniversitĂ¤t Wien), "Linear boundary of finitely generated groups"Abstract
ple.maths.ox.ac.uk/wilsonjs/">John S. Wilson (Oxford), "Hereditarily just infinite groups"
7.06 Swiatoslaw R. Gal (UniversitĂ¤t Wien), "Groups with matrix models and continous logic." Abstract
31.05 Swiatoslaw R. Gal (UniversitĂ¤t Wien), "Groups with matrix models and continous logic." Abstract
24.05 Swiatoslaw R. Gal (UniversitĂ¤t Wien), "We take syntax seriously!" Abstract
10.05 Adam Timar (UniversitĂ¤t Wien), "Some famous families of groups. Questions related to soficity." Abstract
3.05 Adam Timar (UniversitĂ¤t Wien), "Ultraproducts and soficity. Surjunctive groups."Abstract
12.04 Adam Timar (UniversitĂ¤t Wien), "Equivalents of soficity. Basic properties of sofic groups."Abstract
5.04 Adam Timar (UniversitĂ¤t Wien), "More examples of sofic groups and limit measures. Random trees."Abstract
29.03 Adam Timar (UniversitĂ¤t Wien), "Basics on the growth of groups and amenability. Limits of graph sequences, a necessary condition for limit graphs"Abstract
22.03 Adam Timar (UniversitĂ¤t Wien), "Cayley graphs, unimodularity, weak limits of finite graphs"Abstract
25.01 Goulnara Arzhantseva (UniversitĂ¤t Wien), "Finitely presented random groups are surface-like"Abstract
18.01 Martina Kubitzke (UniversitĂ¤t Wien), "The multiplicity conjecture for barycentric subdivisions of simplicial complexes"Abstract
11.01 Myrto Kallipoliti (UniversitĂ¤t Wien), "A topological characterization of the plane and homogeneous continua" Abstract

Schedule for 2010:

07.12 Wolfgang Alexander Moens (UniversitĂ¤t Wien), "A characterisation of nilpotent Lie algebras by their (generalised) derivations"Abstract
30.11 Damian Osajda (UniversitĂ¤t Wien), "Fixed point theorem for systolic complexes"Abstract
23.11 Dietrich Burde (UniversitĂ¤t Wien), "Groups admitting affine crystallographic actions"Abstract
16.11 Bernhard KrĂśn (UniversitĂ¤t Wien), "Linear boundary of finitely generated groups"Abstract
9.11 Swiatoslaw R. Gal (Uniwersytet Wroclawski), "Asymptotic dimension and uniform embeddings"Abstract
12.10 Goulnara Arzhantseva (UniversitĂ¤t Wien), "Coarse amenability and coarse embeddings"Abstract