Organizers: Camille Horbez and Cyril Houdayer

Mondays, 2PM-3PM, building 307, room 2P8, Université Paris-Saclay, Orsay

#### Next Talks

##### Monday June 12

Daniel Drimbe (KU Leuven)

*tba*

##### Monday June 19

Shuoxing Zhou (Université Paris-Saclay)

*tba*

#### Previous Talks

##### Monday September 12

Cyril Houdayer (Université Paris-Saclay)

*The noncommutative factor theorem for higher rank lattices*

##### Monday September 26

Rachel Skipper (ENS Paris)

*Braiding groups of homeomorphisms of the Cantor set*

##### Monday October 10

Itamar Vigdorovich (Weizmann Institute)

*The space of characters, its dynamics, and applications to arithmetic groups*

##### Monday October 17

Omar Mohsen (Université Paris-Saclay)

*An introduction to maximally hypoelliptic differential operators and index theory*

##### Monday October 24

Federica Fanoni (CNRS & Université Paris-Est Créteil)

*Generating big mapping class groups*

##### Monday November 14

Gonzalo Emiliano Ruiz Stolowicz (EPFL)

*Hyperbolic representations of groups and functions of hyperbolic type: the case SL2(R)*

##### Monday November 21

Anne Lonjou (Université Paris-Saclay & University of the Basque Country)

*Cremona groups over finite fields and Neretin groups*

##### Monday December 5

Itamar Vigdorovich (Weizmann Institute)

*The simplex of traces of a group or of a C*-algebra*

##### Monday January 9

Matthieu Joseph (Université Paris-Saclay)

*Invariant random subgroups of Polish groups*

##### Monday January 23

Sami Douba (IHES)

*Dense subgroups of simple Lie groups via bending*

##### Monday January 30

David Xu (Université de Lorraine)

*Convex cocompact representations into the group of isometries of the infinite dimensional hyperbolic space*

##### Monday February 13

Lukas Rollier (KU Leuven)

*Quantum symmetries of connected locally finite graphs*

##### Monday February 20

Antonio Lopez Neumann (Ecole Polytechnique)

*Vanishing of the second L^p-cohomology group for most higher rank semisimple Lie groups*

##### Monday March 13

Camille Horbez (CNRS & Université Paris-Saclay)

*Measure equivalence rigidity among the Higman groups*

##### Monday March 27

Jialun Li (CNRS & École polytechnique)

*Random walks on Lie groups and transfer operator*

##### Monday April 17

Filippo Sarti (University of Turin)

*Rigidity for measurable cocycles via bounded cohomology*

##### Monday April 24

François Le Maître (IMJ)

*A characterization of high transitivity for groups acting on trees*

##### Monday May 15

Jingyin Huang (Ohio State University)

*Introduction to Garside groups*