Stefan Witzel - Talks

### Selected talks

#### Conference talks

- 9 April 2019,
*Finiteness properties of arithmetic approximate groups*, Cohomological methods, IMPAN Warzawa. - 29 June 2018,
*Simple groups separated by finiteness properties*, Norddeutsches Gruppentheorie-Kolloquium 2018, TU Braunschweig. - June 2018,
*Simple groups separated by finiteness properties*, Cohomological and Metric Properties of Groups of Homeomorphisms of R, Mathematisches Forschungsinstitut Oberwolfach. - March 2018,
*Exotic building lattices*, Gemeinsame Jahrestagung GDMV, Paderborn. - 5 February 2018,
*The complex of boundary braids*, Winterbraids VIII, Luminy. - 1 December 2017,
*Exotic building lattices*, Groups and Geometry in the South East, University of Southampton. - 28 September 2017,
*On panel-regular Ã*, Buildings and symmetry, University of Western Australia, Perth._{2}lattices - 4 March 2016,
*On certain Ã*, Sheds 2016, Universität Münster._{2}lattices - 29 September 2015,
*Solving equations to find uniform lattices*, Buildings 2015, Universität Münster. - 3 September 2015,
*The Basilica Thompson group is not finitely presented*, Finiteness Conditions in Topology and Algebra, Queen's University Belfast. - 5 December 2014,
*Groups with infinite homology modulo a prime*, Geometric Group Theory in Bonn, Max Planck Institute Bonn. - 27 May 2014,
*Thompson groups for families of groups and their finiteness properties*, Workshop on the Extended Family of R. Thompson's Groups, University of St. Andrews. - 15 October 2013,
*Proper finiteness properties of certain solvable arithmetic groups*, Classifying spaces, loop spaces and finiteness, Københavns Universitet. - 13 August 2013,
*Classifying spaces for families of subgroups and their finiteness properties*, Geometric and Cohomological Group Theory, EPSRC Durham Symposium. - 15 April 2013,
*Proper finiteness properties of some solvable arithmetic groups in positive characteristic*, Arithmetic Groups, BIRS, Banff, Alberta. - 2 October 2012,
*Generalizations of Abels's groups and their Bredon-finiteness properties*, Buildings 2012, Universität Münster. - 20 June 2012,
*Finiteness properties of S-arithmetic groups*, Journées Solstice d'été, Paris. - 17 February 2012,
*Cocompact actions for arithmetic groups*, Groups and Geometry in the South East, Oxford. - 5 November 2011,
*Einfach zusammenhängende Geometrien und Präsentierungen von Gruppen*, Norddeutsches Gruppentheorie Kolloquium, Universität Gießen. - 4 October 2011,
*Some convex subsets of Euclidean buildings*, Buildings 2011, Universität Münster. - 19 July 2011,
*Finiteness properties of S-arithmetic groups*, Geometric presentations of finite and infinite groups, University of Birmingham. - 30 April 2011,
*Finiteness properties of S-arithmetic groups*, Buildings, automorphisms of RAAGs, and outer space, Ohio State University, Columbus. - 4 October 2010,
*Finiteness properties of S-arithmetic groups*, Buildings 2010, Universität Münster.

#### Colloquium talks

- 11 February 2016,
*Thompson's group F, its relatives, and their finiteness properties*, Universität Bielefeld. - 16 October 2015,
*Higher finiteness properties of arithmetic groups*, University of Southampton. - 10 April 2015,
*How finite are infinite groups?*, Tufts University, Boston.

#### Seminar talks

- 25 February 2021,
*Uncountably many simple groups up to quasi-isometry*, Ohio State University. - 9 December 2020,
*Strong property (T) for Ã*, Stockholm University._{2}-lattices - 19 February 2018,
*Simple groups separated by finiteness properties*, Université Paris-Sud, Orsay. - 24 November 2016,
*A framework for Thompson groups*, EPFL Lausanne. - 8 March 2016,
*On certain Ã*, Université catholique de Louvain, Louvain-la-Neuve._{2}lattices - 18 September 2015,
*Proper finiteness properties of some solvable arithmetic groups*, Heinrich-Heine Universität Düsseldorf. - 30 April 2015,
*Higher finiteness properties of arithmetic groups in positive characteristic*, University of Chicago. - 23 April 2015,
*The Σ-invariants of Thompson's group F*, SUNY at Albany. - 16 April 2015,
*Arithmetic groups, finiteness properties, and homology*, Binghamton University. - 23 March 2015,
*A criterion for detecting infinite group homology*, Université catholique de Louvain, Louvain-la-Neuve. - 30 January 2015,
*Finiteness and infiniteness of group homology*, Universität Regensburg. - 19 February 2013,
*Finiteness properties of arithmetic groups in positive characteristic*, Universität Paderborn. - 18 January 2013,
*Finiteness properties of arithmetic groups in positive characteristic*, Université Claude Bernard Lyon 1. - 14 November 2012,
*Finiteness properties of Thompson's groups*, Justus-Liebig-Universität Gießen. - 29 June 2012,
*Harder's reduction theory and the Rank Theorem*, Tufts University, Boston. - 20 March 2012,
*Bredon-finiteness properties of Abels's groups*, Universität Bielefeld. - 15 February 2012,
*Groups with prescribed finiteness properties*, University of Oxford. - 25 January 2012,
*Brown's Criterion by Example*, Universität Bielefeld. - 28 April 2009,
*Finiteness properties of unitary forms of Kac-Moody groups*, University of Virginia, Charlottesville.