| 2021-- | Goulnara Arzhantseva, Chris Cashen, and Yash Lodha |
| 2020-2021 | Goulnara Arzhantseva and Alex Evetts |
| 2017-2020 | Goulnara Arzhantseva and Chris Cashen |
| 2016-2017 | Goulnara Arzhantseva, Chris Cashen, and Martin Finn-Sell |
| 2014-2016 | Goulnara Arzhantseva and Chris Cashen |
| 2010-2014 | Goulnara Arzhantseva and Damian Osajda |
The webpage for the current year is at:
https://mathematik.univie.ac.at/forschung/seminare/geometry-and-analysis-on-groups-seminar/?no_cache=1
Sommersemester 2021
| Jun 22 | Mikolaj Fraczyk (Chicago), Infinite expanders and heat kernels | Abstract |
| Jun 15 | Gabriela Weitze-Schmithüsen (Saarland University), Systols on Origami Translation Surfaces | Abstract |
| Jun 08 | Nathalie Aubrun (Paris-Saclay), Subshifts of finite type on amenable Baumslag-Solitar groups | Abstract |
| Jun 01 | Koji Fujiwara (Kyoto University), The rates of growth in a hyperbolic group | Abstract |
| May 18 | Isaac Goldbring (UC Irvine), Generic properties in the space of enumerated groups | Abstract |
| May 11 | Daniel Groves (Illinois), Homomorphisms to 3–manifold groups | Abstract |
| May 04 | Damian Sawicki (KU Leuven), Warped cones as a bridge between dynamics and coarse geometry | Abstract |
| Apr 20 | Kasia Jankiewicz (Chicago), A generalization of the Tits Conjecture for Artin groups | Abstract |
| Apr 13 | Nir Lazarovich (Technion), Virtually free groups are stable in permutations | Abstract |
| Mar 23 | Federico Berlai (Vienna), Automorphism groups of Cayley graphs of Coxeter groups | Abstract |
| Mar 16 | Damian Orlef (IMPAN), Non-orderability of random triangular groups by using random 3CNF formulas | Abstract |
| Mar 09 | Louis Esperet (Grenoble), Asymptotic dimension of graphs | Abstract |
Wintersemester 2020/21
| Jan 26 | Laura Chalabi (Vienna), Student talk: Regular languages and word problem | Abstract |
| Jan 26 | Alexander Prähauser (Vienna), Student talk: Zero-divisors in locally indicable groups | Abstract |
| Jan 19 | Susan Hermiller (University of Nebraska), Word problems, finite state automata, and fundamental groups of graphs of groups | Abstract |
| Jan 12 | Henry Wilton (Cambridge), Negative immersions and one-relator groups | Abstract |
| Dec 15 | Tatiana Shulman (IMPAN), Hilbert-Schmidt stability of groups via \(C^*\)–algebras | Abstract |
| Dec 01 | Simon Andre (Vanderbilt), First-order theory and acylindrical hyperbolicity | Abstract |
| Nov 17 | Markus Steenbock (University of Vienna), Product set growth in groups and hyperbolic geometry | Abstract |
| Nov 10 | Yago Antolin (Universidad Complutense de Madrid), Geometry and complexity of positive cones | Abstract |
| Nov 03 | Albert Garreta (UPV/EHU), The Diophantine problem in commutative rings, solvable groups, and classical matrix groups | Abstract |
| Oct 27 | Alex Evetts (ESI), Conjugacy growth of finitely generated groups | Abstract |
| Oct 20 | Clara Löh (Regensburg), Simplicial volume and stable commutator length | Abstract |
| Oct 13 | Yash Lodha (EPFL), Finitely generated infinite simple groups of homeomorphisms of the real line. | Abstract |
Sommersemester 2020
| Mar 10 | Claudio Llosa Isenrich (Wien), "Kodaira fibrations and mapping class groups." | Abstract |
Wintersemester 2019/20
| Jan 28 | Tim de Laat (Münster), "Exotic group \(C^*\)-algebras of automorphism groups of trees." | Abstract |
| Jan 21 | Martin Finn-Sell (Wien), " Exotic group \(C^*\)-algebras from representation theory." | Abstract |
| Jan 14 | Giles Gardam (Münster), "One-relator groups and the Haagerup property." | Abstract |
| Dec 10 | Davide Spriano (ETH Zürich), "The local-to-global property for Morse quasi-geodesics" | Abstract |
| Dec 03 | Nima Hoda (ENS Paris), "Shortcut graphs" | Abstract |
| Nov 26 | Ric Wade (Oxford), "Subgroup rigidity in \(\mathrm{Out}(F_n)\)" | Abstract |
| Nov 19 | Christopher Cashen (Wien), "The status of the quasiisometry classification of RAAGs, part II" | Abstract |
| Nov 12 | Alan Logan (Heriot-Watt), "On the isomorphism problem for (hyperbolic) one-relator groups" | Abstract |
| Nov 05 | Ashot Minasyan (Southampton), "Virtual retraction properties in groups" | Abstract |
| Oct 22 | Christopher Cashen (Wien), "The status of the quasiisometry classification of RAAGs" | Abstract |
| Oct 15 | Liviu Paunescu (IMAR), "Krein-Milman for the space of sofic representations" | Abstract |
| Oct 08 | Sang-hyun Kim (KIAS), "Small \(C^1\) actions of semidirect products on compact manifolds" | Abstract |
Sommersemester 2019
| Jun 27 | Max Vötsch (Wien) "On the elementary theory of groups." | Abstract |
| Jun 04 | Mark Hagen (Bristol), "Coarse Helly property and distance formulae." | Abstract |
| May 28 | Jingyin Huang (Ohio State), "Uniform lattices acting on RAAG complexes." | Abstract |
| May 16 | Sang-hyun Kim (KIAS), "Non-freeness of certain two-parabolic groups" | Abstract |
| May 14 | Romain Tessera (Paris-Sud), "Poincaré profile of connected Lie groups" | Abstract |
| May 07 | Gareth Wilkes (Cambridge), "Residual p-finiteness and graphs of groups" | Abstract |
| May 03 | Jon McCammond (Santa Barbara), "Reflection dynamics on Euclidean Coxeter groups" | Abstract |
| Apr 09 | Daniele D'Angeli (TU Graz), "Solved and unsolved problems in automaton (semi-)groups." | Abstract |
| Apr 02 | Merlin Incerti-Medici (Zürich), "Boundary rigidity of CAT(0) cube complexes" | Abstract |
| Mar 26 | Thomas Haettel (Montpellier), "Hyperbolic rigidity of higher rank lattices" | Abstract |
| Mar 21 | Christof Ender (Wien), "Post-Lie algebra structures and Poisson structures" | Abstract |
| Mar 05 | Leonhard Katzlinger (Wien), "Topological full groups" | Abstract |
Wintersemester 2018/19
| Jan 29 | Vladimir Finkelshtein (Universität Göttingen), "Measure rigidity for horospherical subgroups of groups acting on regular trees." | Abstract |
| Jan 22 | Martin Liebeck (Imperial College) | |
| Jan 15 | Dominik Gruber (ETH Zürich) | |
| Jan 8 | Sebastian Hensel (LMU München) | |
| Dec 4 | Daniel Woodhouse (Technion), "Revisiting Leighton's graph covering theorem." | Abstract |
| Nov 29 | Gisele Teixeira Paula (Université de Lille), "Height estimates for Bianchi groups." | Abstract |
| Nov 27 | Anton Mellit (Universität Wien), "Character varieties." | Abstract |
| Nov 20 | Matthew Tointon (University of Cambridge), "Growth, ispoperimetry and resistance in finite vertex-transitive graphs." | Abstract |
| Nov 14 | Arindam Biswas (Universität Wien), "Covering systems, minimum modulus problem and generalisations." | Abstract |
| Nov 13 | Michael Magee (Durham University), "Unitary matrix integrals, surfaces, and Euler characteristics." | Abstract |
| Nov 6 | Vsevolod Gubarev (Universität Wien), "Rota-Baxter operators." | Abstract |
| Oct 30 | Wolfgang Globke (Universität Wien), "Indefinite homogeneous spaces of finite volume." | Abstract |
| Oct 23 | Angela Carnevale (Universität Bielefeld), "Enumerating traceless matrices." | Abstract |
| Oct 16 | Martin Finn-Sell (Universität Wien), "Attacking the Baum-Connes conjecture for certain direct limits." | Abstract |
| Oct 9 | Christopher Cashen (Universität Wien), "Cogrowth for group actions with a strongly contracting element." | Abstract |
Sommersemester 2018
| Jun 19 | Jing Tao (University of Oklahoma), "Minicourse on quasimorphisms, III&IV." | Abstract |
| Jun 12 | Justin Moore (Cornell University), "Subgroups of Thompson's group." | Abstract |
| Jun 5 | Jing Tao (University of Oklahoma), "Minicourse on quasimorphisms, I&II." | Abstract |
| May 29 | Alexandre Martin (Heriot-Watt University), "On the automorphism group of cyclic products of groups." | Abstract |
| May 15 | Tomasz Prytula (University of Southampton), "Classifying space for proper actions for groups admitting a strict fundamental domain." | Abstract |
| May 8 | Łukasz Grabowski (Lancaster University), "Almost commuting matrices with respect to the rank metric." | Abstract |
| Apr 24 | Ruth Charney (Brandeis University), "A geometric approach to Artin groups." | Abstract |
| Apr 17 | Yuri Bahturin (Memorial University of Newfoundland), "Growth functions in groups and algebras." | Abstract |
| Apr 10 | Aditi Kar (Royal Holloway), "2D Problems in Groups." | Abstract |
| Mar 20 | Vsevolod Gubarev (Universität Wien), "The growth rate of partially commutative monoids and algebras." | Abstract |
| Mar 13 | Anthony Genevois (Université Aix-Marseille/Universität Wien), "A hyperbolic model for cubulable groups." | Abstract |
| Mar 6 | Masato Mimura (Tohoku University), "To (BG), or not to (BG), that is the question." | Abstract |
Wintersemester 2017/18
| Jan 31 | Stuart White (University of Glasgow), "Quasidiagonality and amenability." | Abstract |
| Jan 30 | Stuart White (University of Glasgow), "\(C^{*}\!\)–algebras associated to topological dynamics and groups: classification results." | Abstract |
| Jan 23 | Martin Finn-Sell (Universität Wien), Expository talk on "Convergence of Cayley graphs." | |
| Jan 16 | Rhiannon Dougall (Université de Nantes), "Critical exponents for normal subgroups." | Abstract |
| Jan 9 | John Mackay (University of Bristol), "The Poincaré profile of a graph or group." | Abstract |
| Dec 12 | Alexander Bors (Universität Salzburg/Western Australia), "Fibers of word maps and composition factors." | Abstract |
| Dec 5 | Yurii Neretin (Universität Wien), "Infinite symmetric group and combinatorial cobordisms." | Abstract |
| Nov 21 | Dietrich Burde (Universität Wien), "Szpiro's conjecture, ABC and anabelian geometry.". | Abstract |
| Nov 14 | Arindam Biswas (Universität Wien), "On the diameter problem for finite simple groups." | Abstract |
| Nov 7 | Dawid Kielak (Universität Bielefeld), "The smallest quotients of \(\mathrm{Out}(F_n)\) and mapping class groups." | Abstract |
| Oct 24 | Tony Guttmann (University of Melbourne), "The growth of groups, with application to Thompson's group \(F\)." | Abstract |
| Oct 17 | Matthew Cordes (Technion), "Convex cocompactness in finitely generated groups." | Abstract |
| Oct 10 | Karen Vogtmann (University of Warwick), "Jewels in Outer space." | Abstract |
Sommersemester 2017
Exceptionally, this semester was a mixture of research talks (R) and an introductory lecture course (L).| Jun 27 | Wolfgang Alexander Moens (Universität Wien), "The restricted Burnside problem and the refined Frobenius conjecture." | (L) | Abstract |
| Jun 13 | Martin Finn-Sell (Universität Wien), "Growth in groups and Gromov's theorem." | (L) | |
| May 30 | Martin Finn-Sell (Universität Wien), "Amenable groups and paradoxical representations." | (L) | |
| May 23 | Federico Berlai (Universidad del País Vasco/Euskal Herriko Unibertsitatea), "A refined combination theorem for hierarchically hyperbolic groups." | (R) | Abstract |
| May 16 | Alejandra Garrido (Heinrich Heine Universität Düsseldorf)- "Maximal subgroups of groups of intermediate growth." | (R) | Abstract |
| May 9 | Alexandre Martin (Universität Wien), "CAT(0) cube complexes and a survey of the virtual Haken conjecture." | (L) | Abstract |
| May 2 | Alexandre Martin (Universität Wien), "The basics of groups acting on trees." | (L) | Abstract |
| Apr 25 | Christopher Cashen (Universität Wien), "The Floyd boundary of a hyperbolic group is its Gromov boundary." | (L) | Abstract |
| Apr 4 | Cesar Ceballos (Universität Wien), "The configuration space of a robotic arm in a tunnel." | (R) | Abstract |
| Mar 28 | Martin Finn-Sell (Universität Wien), "An introduction to geometric and analytic group theory II." | (L) | |
| Mar 21 | Martin Finn-Sell (Universität Wien), "An introduction to geometric and analytic group theory." | (L) | |
| Mar 9 | Vadim Alekseev (TU-Dresden), "Invariant random positive definite functions and disintegration rigidity. " | (R) | Abstract |
| Mar 7 | Michael Wibmer (University of Pennsylvania), "Difference algebraic groups." | (R) | Abstract |
Wintersemester 2016/17
| Jan 25 | Ján Špakula (University of Southampton), "Coarse medians and Property A." | Abstract |
| Jan 17 | Mikael de la Salle (ENS de Lyon), "Characterizing a vertex-transitive graph by a large ball." | Abstract |
| Dec 14 | Alexandre Martin (Universität Wien), "On the small cancellation geometry of certain graph products of groups." | Abstract |
| Dec 13 | Nir Lazarovich (ETH Zürich), "Detecting sphere boundaries of hyperbolic groups." | Abstract |
| Nov 23 | Tullio Ceccherini-Silberstein (Università del Sannio), "Expansive actions of countable amenable groups, homoclinic pairs, and the Myhill property." | Abstract |
| Nov 22 | Federico Berlai (Universität Wien), "New residually amenable groups, permanence properties, and metric approximations." | Abstract |
| Nov 22 | Gabor Elek (Lancaster University), "Convergence and limits of representations of finite dimensional algebras." | |
| Nov 15 | Martin Finn-Sell (Universität Wien), "Amenability for étale groupoids, failures of Hulanicki's theorem and the weak containment story." | Abstract |
| Nov 8 | Peter Haïssinsky (Université d'Aix-Marseille), "Quasi-isometric rigidity of fundamental groups of compact 3–manifolds." | Abstract |
| Oct 25 | Nicolás Matte Bon (ETH Zürich), "Subgroup dynamics, extreme boundaries, and \(C^*\)–simplicity." | Abstract |
| Oct 18 | Christopher Cashen (Universität Wien), "The contracting boundary of a group." | Abstract |
| Oct 11 | Adrien Boyer (Weizmann Institute), "Monotony for boundary representations of free group." | Abstract |
Sommersemester 2016
| July 5 | Wolfgang Globke (University of Adelaide), "Étale modules for reductive algebraic groups." | |
| Jun 29 | Piotr Nowak (IMPAN/Uniwersytet Warszawski), "Spectral gaps, warped cones and the coarse Baum-Connes conjecture." | Abstract |
| Jun 28 | Markus Steenbock (Universität Wien), "Kaplansky's zero divisor conjecture, CAT(0) cubulation, and the unique product property." | Abstract |
| Jun 28 | Indira Chatterji (Université de Nice), "The median class for CAT(0) cubical complexes." | Abstract |
| Jun 21 | Andrei Minchenko (Universität Wien), "Differential Algebraic Groups and Their Applications." | Abstract |
| Jun 15 | Mark Sapir (Vanderbilt University), "On subgroups of R. Thompson group \(F\)." | Abstract |
| Jun 14 | Rémi Coulon (Université de Rennes), "Torsion groups acting properly on a CAT(0) cube complex." | Abstract |
| Jun 08 | Damian Osajda (Uniwersytet Wrocławski), "Burnside groups without property (T)." | |
| Jun 08 | Damian Osajda (Uniwersytet Wrocławski), "Classifying spaces for families of subgroups for systolic groups." | Abstract |
| Jun 07 | Elisabeth Fink (University of Ottawa), "Morse geodesics in lacunary hyperbolic groups." | Abstract |
| May 10 | John Mackay (University of Bristol), "Fixed point properties for groups acting on \(L^p\) spaces." | Abstract |
| Apr 26 | Martin Finn-Sell (Universität Wien), "Analytic properties of sofic groups." | |
| Apr 19 | Wolfgang Moens (Universität Wien), "Arithmetically-free group-gradings of algebras with the permutation-contraction property." | Abstract |
| Apr 12 | Alexandre Martin (Universität Wien), "Über-contractions and acylindrical hyperbolicity." | Abstract |
| Apr 05 | Martin Finn-Sell (Universität Wien), "How not to prove Thompson-like groups are exact (and three other short stories)." | Abstract |
| Mar 15 | François Dahmani (Université Joseph Fourier, Grenoble I), "A spectral theorem for random walks in Mapping Class Groups: the convergence of the stretching factors." | Abstract |
| Mar 08 | Henry Bradford (University of Cambridge), "Uniform Diameter Bounds in Pro-p Groups." | Abstract |
Wintersemester 2015/16
| Jan 26 | Maxime Gheysens (École Polytechnique Fédérale de Lausanne), "Amenability as an affine fixed-point property in Hilbert spaces." | Abstract |
| Jan 19 | Mark Hagen (University of Cambridge), "Geometry of hierarchically hyperbolic spaces." | Abstract |
| Jan 12 | Panos Papazoglou (University of Oxford), "Cutpoints of CAT(0) groups." | Abstract |
| Dec 15 | Anthony Genevois (Aix-Marseille Université), "Acylindrical hyperbolicity of diagram groups from cubical geometry." | Abstract |
| Dec 01 | Thibault Pillon (Université de Genève), "Fibred property A." | Abstract |
| Nov 24 | Johannes Cuno (Technische Universität Graz), "The Tits alternative for non-spherical triangles of groups." | Abstract |
| Nov 17 | Uli Wagner (Institute of Science and Technology Austria), "Higher-dimensional expansion and topological overlap." | Abstract |
| Nov 10 | Markus Steenbock (Universität Wien), "Strong Atiyah conjecture for free groups and small cancellation groups". | Abstract |
| Nov 03 | Karl Auinger (Universität Wien), "Profinite graphs and the Ribes–Zalesskiĭ-Theorem." | Abstract |
| Oct 27 | Christopher Cashen (Universität Wien), "Contracting geodesics in graphical small cancellation groups." | Abstract |
| Oct 20 | Tracy Payne (Idaho State University), "Anosov maps on nilmanifolds." | Abstract |
| Oct 13 | JiaWen Zhang, (Universität Wien), "(Straight) Finite Decomposition Complexity for automata groups and box spaces." | Abstract |
Sommersemester 2015
| Jun 17 | Martin Finn-Sell (Universität Wien), "Some new negative results about box spaces." | |
| Jun 16 | Yash Lodha (EPFL), "A nonamenable finitely presented group of piecewise projective homeomorphisms." | Abstract |
| Jun 09 | Martin Finn-Sell (Universität Wien), "Some new positive results about box spaces." | |
| Jun 02 | Mark Sapir (Vanderbilt University), "Diagram groups and knots." | Abstract |
| May 19 | Karl Lorensen (Pennsylvania State University, Altoona), "Cohomology of solvable groups of finite rank." | Abstract |
| May 12 | Liviu Paunescu (IMAR, Bucharest), "On the Birkhoff - von Neumann theorem in type \(\mathrm{II}_1\) setting." | Abstract |
| May 06 | Martino Lupini (Universität Wien), "Fraisse theory and universal objects in group theory and metric geometry." | Abstract |
| May 05 | Martino Lupini (Universität Wien), "Borel complexity theory and Gromov's program." | Abstract |
| Apr 28 | Nick Wright (University of Southampton), "Geometric Examples of the Baum-Connes conjecture and Langlands duality." | Abstract |
| Apr 21 | Arnaud Hilion (Aix-Marseille Université), "Trees, currents and systems of partial isometries." | Abstract |
| Apr 14 | Anne Thomas (University of Glasgow), "Quasi-isometry classification of certain hyperbolic right-angled Coxeter groups." | Abstract |
| Mar 24 | Klaus Schmidt (Universität Wien), "Ergodicity of algebraic group actions." | Abstract |
| Mar 17 | David Hume (Université Catholique de Louvain), "Separation and Expanders." | Abstract |
| Mar 11 | Rudolf Zeidler (Universität Göttingen), "Large scale index theory and positive scalar curvature." | Abstract |
Wintersemester 2014/15
| Jan 27 | Camille Horbez (Université Rennes 1), "The Tits alternative for the automorphism group of a free product." | Abstract |
| Jan 20 | Dominik Gruber (Universität Wien), "On infinitely presented graphical small cancellation groups." | Abstract |
| Dec 16 | Christopher Cashen (Universität Wien), "Fibrations of Mapping Tori of Polynomially Growing Free Group Automorphisms." | Abstract |
| Dec 09 | Roman Sauer (Karlsruhe Inst. Tech.-IAG), "Lattices envelopes." | Abstract |
| Dec 02 | Markus Steenbock (Universität Wien), "A combination theorem for cubulation in small cancellation theory over free products." | Abstract |
| Nov 25 | Michal Ferov (University of Southampton), "Conjugacy separability in graph products of groups." | Abstract |
| Nov 18 | Adrien Le Boudec (Université Paris-Sud 11), "Locally compact lacunary hyperbolic groups." | Abstract |
| Nov 11 | Jean Raimbault (Université Paul Sabatier, Toulouse III), "On a property of geometric actions of groups." | Abstract |
| Nov 05 | Harald Helfgott (CNRS - Paris VI/VII), "The ternary Goldbach conjecture." (Kolloquiumsvortrag) | Abstract |
| Nov 04 | Liviu Paunescu (IMAR, Bucharest), "Almost commuting permutations are near commuting permutations." | Abstract |
| Oct 28 | Federico Berlai (Universität Wien), "Stably finite groups". | Abstract |
| Oct 21 | Martin Finn-Sell (Universität Wien), "Some analytic consequences of coarsely containing an expander." | Abstract |
| Oct 14 | Neha Gupta (University of Illinois), "Nielsen Equivalence Classes in a Class of Random Groups." | Abstract |
Sommersemester 2014
17.06 Dominika Pawlik (Uniwersytet Warszawski), "Automaticity of hyperbolic groups and analogous properties of their Gromov boundaries." Abstract28.05 Ján Špakula (University of Southampton), "Green metric and boundaries of hyperbolic groups." Abstract
27.05 Natasa Macura (Trinity University), "CAT(0) spaces with polynomial divergence of geodesics." Abstract
20.05 Liviu Paunescu (IMAR), "Sofic representations that cannot be extended." Abstract
13.05 Piotr Nowak (Polska Akademia Nauk and Uniwersytet Warszawski), "Rigidity for actions on Banach spaces and Poincare inequalities." Abstract
7.05 Florin Radulescu (University of Rome 2, IMAR), "Hecke operators, discrete series unitary representations and Operator Algebras." Abstract
6.05 Martin Finn-Sell (Universität Göttingen), "Boundary a-T-menability for large girth expander graphs." Abstract
9.04 Andrew Duncan (Newcastle University), "Subgroups of the automorphism groups of partially commutative groups (RAAGs)." Abstract
9.04 Christopher Cashen (Universität Wien), "Quasi-isometry invariants from decorated trees." Abstract
8.04 Arye Juhasz (Technion), "The isoperimetric function of groups defined by a single positive word." Abstract
31.03 - 4.04 workshop Geometry of computation in groups, Erwin Schrödinger International Institute
25.03 Bogdan Nica (Universität Göttingen), "Analytic aspects of boundaries of hyperbolic groups." Abstract
18.03 Adrien Le Boudec (Université Paris-Sud 11), "Tree almost automorphism groups." Abstract
11.03 Chris Cave (University of Southampton), "Coarse embeddability into Hilbert spaces and its consequences." Abstract
Wintersemester 2013/14
28.01 Hiroshi Ando (Erwin Schrödinger Institute), "Finite type Polish groups." Abstract14.01 Louis Funar (Université de Grenoble I), "On mapping class groups representations." Abstract
7.01 Christopher Cashen (Universität Wien), "Growth Tight Actions." Abstract
17.12 Federico Berlai (Universität Wien), "Residually amenable groups: stability properties." Abstract
10.12 Jakub Gismatullin (Uniwersytet Wroclawski), "Weak sofic and weak hyperlinear groups." Abstract
3.12 François Dahmani (Université Joseph Fourier, Grenoble I), "The conjugacy problem for some automorphisms of free groups, through suspensions." Abstract
19.11 Alessandro Sisto (ETH Zurich), "Random walks and relative hyperbolicity." Abstract
12.11 Rudolf Zeidler (Universität Göttingen), "Coarse median structures." Abstract
5.11 Markus Steenbock (Universität Wien), "Rips construction without unique product." Abstract
29.10 Alexandre Martin (Universität Wien), "Combination of classifying spaces for proper actions." Abstract
22.10 Fabian Haiden (Universität Wien), "Entropy of endofunctors." Abstract
15.10 Romain Tessera (ENS Lyon), "Hausdorff-Gromov limits of rescaled finite transitive graphs." Abstract
2.10 Hans-Jurgen Bandelt (Universität Hamburg), "A mathematical duality and its application in forensic genetics." (Kolloquiumsvortrag) Abstract
2.10 Martino Lupini (York University), "Sofic and hyperlinear groups and the logic for metric structures." Abstract
Sommersemester 2013
18.06 Erik Guentner (University of Hawaii), "A differential complex for CAT(0) cubical spaces" Abstract11.06 Rufus Willett (University of Hawaii), "Expanders and ghost projections." Abstract
28.05 Ján Špakula (Universität 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 (Universität Wien), "Scale function and topological entropy in locally compact totally disconnected groups." Abstract
23.04 Rudolf Zeidler (Universität 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 (Université de Neuchâtel), "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
Wintersemester 2012/13
30.01 Liviu Paunescu (Universität Wien), "Linear sofic groups and algebras."Abstract23.01 Alexandre Martin (Université de Strasbourg), "Construction of boundaries for non-positively curved complexes of groups."Abstract
9.01 Marc Bourdon (Université de Lille 1), "Some applications of $\ell_p$-cohomology to boundaries of Gromov hyperbolic spaces."Abstract
12.12 John Mackay (University of Oxford), "Quasi-hyperbolic planes in relatively hyperbolic groups." Abstract
5.12 Victor Chepoi (Université de la MediterranÄ‚Å e), "Colouring hyperplanes of CAT(0) cube complexes."Abstract
28.11 Christopher Cashen (Universität 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 Ruth Charney (Brandeis University), "Boundaries of spaces of non-positive curvature." (Kolloquiumsvortrag) Abstract
7.11 Ruth Charney (Brandeis University), "Outer space for right-angled Artin groups." Abstract
31.10 Roger Gomez Ortells (Universität Wien), "On compactly supported cohomology of systolic pseudomanifolds." Abstract
24.10 Tadeusz Januszkiewicz (Polish Academy of Sciences), "A twin of the braid group." (Kolloquiumsvortrag) 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
Sommersemester 2012
26.06 Goulnara Arzhantseva (Universität Wien), "Infinitely presented groups satisfying Baum-Connes conjectures." Abstract12.06 Masato Mimura (Université de Neuchâtel), "Property (TT)/T and homomorphism superrigidity into mapping class groups." Abstract
5.06 Bernhard Krön (Universität Wien), "Vertex cuts." Abstract
22.05 Swiatoslaw R. Gal (Uniwersytet Wroclawski), "Dynamics, growth of cocycles, and distorted elements." Abstract
15.05 Liviu Paunescu (Universität Wien), "Indecomposable sofic approximations." Abstract
9.05 Henry Segerman (University of Melbourne), "A generalisation of the deformation variety" Abstract
8.05 François Gautero (Université de Nice), "Gromov's a-T-menability and free-by-free groups." Abstract
24.04 Markus Steenbock (Universität Wien), "Graphical random groups." Abstract
17.04 Fanny Kassel (Université de Lille 1), "Discrete spectrum of the Laplacian on non-Riemannian locally symmetric spaces." Abstract
29.03 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 Zürich), "Unitary representations" (introductory) and "Multiplicative representations of virtually free groups" Abstract
6.03 Boštjan Brešar and Tanja Gologranc (University of Maribor), "Median graphs, algebras and complexes" Abstract
Wintersemester 2011/12
31.01 Dominik Gruber (Universität Wien), "Graphical small cancellation groups." Abstract27.01 Alex Gamburd (CUNY), "Generalization of Selberg's 3/16 Theorem and Affine Sieve." Abstract
26.01 Alex Gamburd (CUNY), "Expander Graphs, Thin Groups and Super-strong Approximation." (Kolloquiumsvortrag) Abstract
24.01 François Guéritaud (Université de Lille 1), "Deforming quotients of rank-one groups." Abstract
17.01 Adam Timar (Universität Wien), "Critical percolation and graph sequences." Abstract
13.12 Valerio Capraro (Université de Neuchâtel), "Topology on locally finite metric spaces" Abstract
6.12 Adam Timar (Universität Wien), "Quasi-invariant means and Zimmer amenability." Abstract
29.11 Luis Manuel Rivera Martinez (Universität Wien), "Almost commuting matrices and related topics" Abstract
22.11 Damian Osajda (Universität Wien), "A construction of highly dimensional hyperbolic Coxeter groups." Abstract
15.11 Markus Steenbock (Universität Wien), "Torsion-free group without unique product property." Abstract
8.11 Swiatoslaw R. Gal (Universität Wien), "Reflection length on Coxeter groups."Abstract
18.10 Swiatoslaw R. Gal (Universität Wien), "Subgroups of Interval Exchange groups." Abstract
11.10 Adam Timar (Universität Wien), "On the separation profile of infinite graphs."Abstract
Sommersemester 2011
28.06 Goulnara Arzhantseva (Universität Wien), "Introduction to the space of marked groups" and "Finite-dimensional approximations of finitely generated groups."Abstract21.06 Luis Manuel Rivera Martinez (Universität Wien), "Weakly-sofic groups."Abstract
16.06 Bernhard Krön (Universität Wien), "Linear boundary of finitely generated groups"Abstract
14.06 John S. Wilson (Oxford), "Hereditarily just infinite groups"
7.06 Swiatoslaw R. Gal (Universität Wien), "Groups with matrix models and continous logic." Abstract
31.05 Swiatoslaw R. Gal (Universität Wien), "Groups with matrix models and continous logic." Abstract
24.05 Swiatoslaw R. Gal (Universität Wien), "We take syntax seriously!" Abstract
10.05 Adam Timar (Universität Wien), "Some famous families of groups. Questions related to soficity."
3.05 Adam Timar (Universität Wien), "Ultraproducts and soficity. Surjunctive groups."
12.04 Adam Timar (Universität Wien), "Equivalents of soficity. Basic properties of sofic groups."
5.04 Adam Timar (Universität Wien), "More examples of sofic groups and limit measures. Random trees."
29.03 Adam Timar (Universität Wien), "Basics on the growth of groups and amenability. Limits of graph sequences, a necessary condition for limit graphs"
22.03 Adam Timar (Universität Wien), "Cayley graphs, unimodularity, weak limits of finite graphs"
Wintersemester 2010/11
25.01 Goulnara Arzhantseva (Universität Wien), "Finitely presented random groups are surface-like"Abstract18.01 Martina Kubitzke (Universität Wien), "The multiplicity conjecture for barycentric subdivisions of simplicial complexes"Abstract
11.01 Myrto Kallipoliti (Universität Wien), "A topological characterization of the plane and homogeneous continua" Abstract
07.12 Wolfgang Alexander Moens (Universität Wien), "A characterisation of nilpotent Lie algebras by their (generalised) derivations"Abstract
30.11 Damian Osajda (Universität Wien), "Fixed point theorem for systolic complexes"Abstract
23.11 Dietrich Burde (Universität Wien), "Groups admitting affine crystallographic actions"Abstract
16.11 Bernhard Krön (Universität 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 (Universität Wien), "Coarse amenability and coarse embeddings"Abstract