This is the fourth instalment of the THGT conference series. As its predecessors, the conference takes place in Bielefeld in spring, and as before it welcomes researchers studying groups through their interactions with topology and homology, as well as people interested in entering the subject.

Organisers: Ilaria Castellano, Dawid Kielak and Stefan Witzel.

__Registration is closed!__

THIS CONFERENCE IS SUPPORTED BY

Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) -- SFB-TRR 358/1 2023 -- 491392403

- Uri Bader (Weizmann Institute of Science)
- Robert Bieri (Goethe-Universität Frankfurt)
- Yves de Cornulier (CNRS, Nantes Université)
- Alejandra Garrido (Universidad Complutense de Madrid)
- Dessislava Kochloukova (Universidade Estadual de Campinas)
- Claudio Llosa Isenrich (Karlsruher Institut für Technologie)
- Bruno Martelli (Università di Pisa)
- Conchita Martínez Pérez (Universidad de Zaragoza)
- Roman Sauer (Karlsruher Institut für Technologie)
- Anne Thomas (University of Sydney)
- Matthew Zaremsky (University at Albany)

The conference dinner will be at the Numa.

Time | Title | Speaker |
---|---|---|

Monday, 18.03 | ||

09:00 - 10:00 | Registration | |

10:00 - 11:00 | Negatively curved spaces obtained via branched coverings over a torus | Bruno Martelli (Università di Pisa) |

11:00 - 11:30 | Coffee Break | |

11:30 - 12:30 | Groups with exotic finiteness properties from complex Morse theory | Claudio Llosa Isenrich (Karlsruher Institut für Technologie) |

12:30 - 14:00 | Lunch | |

14:00 - 14:30 | Dehn functions of subgroups of direct products of free groups | Matteo Migliorini (Karlsruher Institut für Technologie) |

14:45 - 15:15 | Virtual fibration of trivalent triangle groups acting on hyperbolic buildings | Ana Isakovic (University of Cambridge) |

15:15 - 16:00 | Coffee Break | |

16:00 - 16:30 | Homological finiteness conditions for totally disconnected locally compact groups. | Sofiya Yatsyna (Royal Holloway University of London) |

16:45 - 17:15 | Profinite rigidity and flexibility of Coxeter groups | Olga Varghese (HHU Düsseldorf) |

Tuesday, 19.03 | ||

09:30 - 10:30 | The cohomology of arithmetic groups from a group theorist’s perspective | Roman Sauer (Karlsruher Institut für Technologie) |

10:30 - 11:00 | Coffee Break | |

11:00 - 12:00 | Lattices in products of rank 1 simple Lie groups | Uri Bader (Weizmann Institute of Science) |

12:00 - 14:00 | Lunch | |

14:00 - 14:30 | Vanishing of the second $L^p$-cohomology group for most semisimple groups of rank at least 3 | Antonio Lopez Neumann (Mathematical Institute of the Polish Academy of Sciences) |

14:45 - 15:15 | Constructing high-dimensional expanders | Inga Valentier-Branth (Ghent University) |

15:15 - 16:00 | Informal discussion on children and academia 1 | |

16:00 - 16:30 | Compactly-supported classes in the homology of big mapping class groups | Xiaolei Wu (Fudan University) |

16:45 - 17:15 | The Farrell--Jones Conjecture and automorphisms of relatively hyperbolic groups | Naomi Andrew (University of Oxford) |

Wednesday, 20.03 | ||

09:30 - 10:30 | On the group of rectangle exchanges | Yves de Cornulier (CNRS, Nantes Université) |

10:30 - 11:00 | Coffee Break | |

11:00 - 12:00 | Homological properties in group theory | Dessislava Kochloukova (Universidade Estadual de Campinas) |

12:00 - 13:30 | Lunch | |

13:30 - 14:30 | On the $\Sigma$-Invariants of Discrete Groups in a Nutshell | Robert Bieri (Goethe-Universität Frankfurt) |

14:45 - 15:00 | Conference Picture | |

15:00 - 18:00 | Hike | |

19:00 - 21:00 | Social dinner at "Numa" | |

Thursday, 21.03 | ||

09:30 - 10:30 | The geometry of conjugation in Euclidean isometry groups | Anne Thomas (University of Sydney) |

10:30 - 11:00 | Coffee Break | |

11:00 - 12:00 | On coherent Artin groups | Conchita Martínez Pérez (Universidad de Zaragoza) |

12:00 - 14:00 | Lunch | |

14:00 - 14:30 | Automorphism groups of Salvetti complexes | Merlin Incerti-Medici (Universität Wien) |

14:45 - 15:15 | Torsion homology growth and cheap rebuilding of inner-amenable groups | Matthias Uschold (University of Regensburg) |

15:15 - 16:30 | Informal discussion on children and academia 2 | |

16:30 - 17:00 | Profinite properties and Galois cohomology | Giada Serafini (Heinrich Heine Universität) |

Friday, 22.03 | ||

09:30 - 10:00 | Just-infinite groups via iterated semidirect products | Eduard Schesler (FernUniversität Hagen) |

10:00 - 10:30 | Coffee Break | |

10:30 - 11:30 | Hyperbolic groups satisfy the Boone-Higman conjecture | Matthew Zaremsky (University at Albany) |

Naomi Andrew (University of Oxford)

Uri Bader (Weizmann Institute of Science)

Robert Bieri (Goethe-Universität Frankfurt)

Yves de Cornulier (CNRS, Nantes Université)

Alejandra Garrido (Universidad Complutense de Madrid)

Merlin Incerti-Medici (Universität Wien)

Ana Isakovic (University of Cambridge)

Dessislava Kochloukova (Universidade Estadual de Campinas)

Claudio Llosa Isenrich (Karlsruher Institut für Technologie)

Antonio Lopez Neumann (Mathematical Institute of the Polish Academy of Sciences)

Bruno Martelli (Università di Pisa)

Conchita Martínez Pérez (Universidad de Zaragoza)

Matteo Migliorini (Karlsruher Institut für Technologie)

Roman Sauer (Karlsruher Institut für Technologie)

Eduard Schesler (FernUniversität Hagen)

Giada Serafini (Heinrich Heine Universität)

Anne Thomas (University of Sydney)

Matthias Uschold (University of Regensburg)

Inga Valentier-Branth (Ghent University)

Olga Varghese (HHU Düsseldorf)

Xiaolei Wu (Fudan University)

Sofiya Yatsyna (Royal Holloway University of London)

Matthew Zaremsky (University at Albany)

- Abels, Herbert (
*Bielefeld University*) - Abgrall, Adrien (
*Université de Rennes*) - Andrew, Naomi (
*University of Oxford*) - Arenas, Macarena (
*University of Cambridge*) - Ascari, Dario (
*University of the Basque Country*) - Assy, Lyn (
*Ludwig Maximilian Universität*) - Bader, Shaked (
*University of Oxford*) - Bertolotti, Federica (
*Scuola Normale Superiore*) - Bogliolo, Elena (
*University of Pisa*) - Bradford, Henry (
*University of Cambridge*) - Bravo, Claudio (
*Ecole Polytechnique*) - Brück, Benjamin (
*Universität Münster*) - Busch, Sira (
*University of Münster*) - Bux, Kai-Uwe (
*Bielefeld University*) - Campagnolo, Caterina (
*Universidad Autónoma de Madrid*) - Capovilla, Pietro (
*SNS Pisa*) - Castellano, Ilaria (
*Bielefeld University*) - Chanfi, Dorian (
*JLU Gießen*) - chemikh, smail (
*USTHB Alger*) - Cohen, William (
*University of Cambridge*) - Conte, Martina (
*Heinrich-Heine-Universität Düsseldorf*) - Deré, Jonas (
*KU Leuven Kulak*) - Echtler, Daniel (
*Heinrich Heine University Düsseldorf*) - Embleton, Alexandra (
*Royal Holloway, University of London*) - Feuerpfeil, Julian (
*Università degli Studi di Milano-Bicocca*) - Fisher, Sam (
*University of Oxford*) - Fournier-Facio, Francesco (
*University of Cambridge*) - Francoeur, Dominik (
*Newcastle University*) - Fruchter, Jonathan (
*University of Bonn*) - García Mejía , Jerónimo (
*Karlsruhe Institut für Technologie*) - Hadziosmanovic, Ervin (
*SNS Pisa*) - Hartmann, Elisa (
*Bielefeld University*) - Heller, Julia (
*KIT Karlsruhe*) - Herron, Amy (
*University at Buffalo*) - Hofmann, Franziska (
*Universität Regensburg*) - Holm, Kristian (
*CAU Kiel*) - Hsueh, Chun-Sheng (
*Humboldt-Universität zu Berlin*) - Hughes, Sam (
*University of Oxford*) - Isakovic, Ana (
*University of Cambridge*) - Kammeyer, Holger (
*Heinrich Heine University Düsseldorf*) - Kelln, Colby (
*Cornell University*) - Kielak, Dawid (
*University of Oxford*) - King, Simon Alexander (
*Friedrich-Schiller-Universität Jena*) - Kionke, Steffen (
*FernUniversität in Hagen*) - Klinge, Kevin (
*Karlsruhe Institute of Technology*) - Kochloukova, Dessislava (
*Unicamp*) - Lederle, Waltraud (
*TU Dresden*) - Li, Kevin (
*Universität Regensburg*) - Li, Qing (
*shijiazhuang traditional chinese*) - Long, Yusen (
*Institut de Mathématiques d'Orsay*) - López Neumann, Antonio (
*Mathematical Institute of the Polish Academy of Sciences*) - Loué, Alex (
*Université Catholique de Louvain*) - Mandal, Manas (
*The Institute of Mathematical Sciences (IMSc)*) - Marchand, Alexis (
*University of Cambridge*) - Marchionna, Bianca (
*Bielefeld University and University of Milano-Bicocca*) - Marmo, Ettore (
*Università degli Studi di Milano-Bicocca*) - Migliorini, Matteo (
*Karlsruher Institut für Technologie*) - Mineh, Lawk (
*University of Southampton*) - Molyneux, Lewis (
*Royal Holloway, University of London*) - Morales, Ismael (
*University of Oxford*) - Mouadi, Hassan (
*Ibnou Zohr University , Polydisciplinary Faculty of Taroudant*) - Munro, Zachary (
*McGill*) - Ng, Andrew (
*University of Bonn*) - Palmer, Marcel (
*Universität Bielefeld*) - Parackal, Romeo (
*Cochin University of Science and Technology, India*) - Patil, Harsh (
*University of Bristol*) - Petschick, Jan Moritz (
*Universität Bielefeld*) - Price, Amethyst (
*University of California Santa Cruz*) - Quintanilha, José Pedro (
*Universität Heidelberg*) - Rajabova, Nilufar (
*Karlsruhe Institute of Technology*) - Reyes, Eduardo (
*MPIM Bonn*) - Rudd, Cameron (
*Max-Planck-Insitute Bonn*) - Rusakov, Illja (
*Universität Regensburg*) - Sánchez-Peralta, Pablo (
*Universidad Autónoma de Madrid*) - Santos Rego, Yuri (
*University of Lincoln*) - Schesler, Eduard (
*FernUniversität Hagen*) - Schillewaert, Jeroen (
*University of Auckland*) - Schneider, Paul Hannes (
*Bielefeld University*) - Serafini, Giada (
*Heinrich Heine Universitat*) - Singh, Gurnoor (
*Cheentan*) - Sliazkaite, Ruta (
*University of Warwick*) - Soifer, Gregory (
*Bar-Ilan University*) - Striftaris Chalkiopoulos, Aristodimos (
*Ludwig-Maximilians-Universität München*) - Sun, Bin (
*Michigan State University*) - Święcicki, Krzysztof (
*Wrocław University of Science and Technology*) - TEJBIR, TEJBIR (
*IISER Mohali, India*) - Theiß, Niklas (
*JLU Gießen*) - Thiesen, Nils (
*CAU Kiel*) - Thilmany, François (
*UC Louvain*) - Titz Mite, Thomas (
*JLU Gießen*) - Uschold, Matthias (
*University of Regensburg*) - Valentiner-Branth, Inga (
*Ghent University*) - Vankov, Vladimir (
*University of Bristol*) - Varghese, Olga (
*HHU Düsseldorf*) - Vock, Christian (
*CAU Kiel*) - Waite, Luke (
*University of Southampton*) - Weidmann, Richard (
*CAU Kiel*) - Weigel, Thomas (
*University of Milano-Bicocca*) - Weis, Jannis (
*Karlsruher Institut für Technologie*) - Witzel, Stefan (
*JLU Gießen*) - Wu, Xiaolei (
*Fudan University*) - Wykowski, Julian (
*University of Cambridge*) - Yatsyna, Sofiya (
*Royal Holloway, University of London*) - Zellhofer, Paul (
*CAU Kiel*) - Zhao, Cunyuan (
*EPFL*)