COGENT: Cohomology, Geometry and Explicit number theory

at.algebraic-topology kt.k-theory-and-homology nt.number-theory
Start Date
End Date
Institute Fourier, CNRS, Universite Grenoble Alpes 
Meeting Type
summer school, conference 
Contact Name


The Summer School in Mathematics 2022 (Institut Fourier, Grenoble) will take place from June 13th to July 1st, 2022 and will be dedicated to Cohomology, Geometry and Explicit number theory (COGENT).

It will be a hybrid event with both in-person and online participation.

The goal of this school is to introduce young mathematicians to some recent developments in the field of cohomology of groups, with a focus on arithmetic groups, from geometrical, topological and computational aspects with applications to number theory. We also want to promote greater interaction among researchers and PhD students,​ and strengthen the COGENT network through new collaborations.

The first two weeks are dedicated to mini-courses and mini-workshops around some computational tools and new computational techniques, as well as short term team projects.

The third week will be devoted to a workshop on COGENT featuring both young researchers and leading specialists.

There will also be an "Illustrating mathematics'' event with an art exhibitions showcasing artistic visuals related to the geometries of arithmetic groups.


We have partial funding for the accommodation of participants. Registration is mandatory for both on-site and online participation (including for the third week workshop). (see,

Registration for on-site participation will close on May 16, 2022. Registration for online participation is open and will close on June 6th, 2022.

We acknowledge the support of the Institut Fourier, of the CNRS, of the LabEx Persyval, of the GDR JC2A, of U. Grenoble Alpes and Grenoble-INP, of Grenoble-Alpes Métropole and of the MSTII Doctoral School for the organisation of this event.

Looking forward to seeing you in Grenoble.

The organizers: B. Eick (TU Braunschweig), Ph. Elbaz-Vincent (U.Grenoble Alpes), G. Ellis (NUI Galway), P. Gunnells (U. Massachusetts-Amherst), H. Sengun (U. Sheffield)

Contact organizer: [email protected] Contact staff: Géraldine Touvier ([email protected])


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