Planning
Time |
Event |
(+)
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09:00 - 12:30
|
Welcome opening |
|
14:00 - 15:00
|
Alexander HULPKE 1 - Computational group theory, cohomology of groups and topological methods |
|
15:15 - 16:15
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Alexander HULPKE 2 - Computational group theory, cohomology of groups and topological methods |
|
16:30 - 17:30
|
Renaud COULANGEON 1 - Lattices, Perfects lattices, Voronoi reduction theory, modular forms, computations of isometries and automorphisms |
|
Time |
Event |
(+)
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09:00 - 10:00
|
Renaud COULANGEON 2 - Lattices, Perfects lattices, Voronoi reduction theory, modular forms, computations of isometries and automorphisms |
|
10:15 - 11:15
|
Graham ELLIS 1 - Computational group theory, cohomology of groups and topological methods |
|
11:30 - 12:30
|
Graham ELLIS 2 - Computational group theory, cohomology of groups and topological methods |
|
12:30 - 14:00
|
Lunch |
|
14:00 - 15:00
|
Gabriele NEBE 1 (zoom) - Lattices, Perfects lattices, Voronoi reduction theory, modular forms, computations of isometries and automorphisms |
|
15:15 - 16:15
|
Alexander HULPKE 3 - Computational group theory, cohomology of groups and topological methods |
|
16:30 - 17:30
|
Graham ELLIS 3 - Computational group theory, cohomology of groups and topological methods |
|
Time |
Event |
(+)
|
09:00 - 10:45
|
Bill ALLOMBERT - Introduction to PARI/GP (with 'laptop classroom'; intro+practical work) |
|
11:00 - 12:30
|
Herbert GANGL - Illustrating the mathematics of COGENT: A hyperbolic angle |
|
12:30 - 14:00
|
Lunch |
|
14:00 - 15:00
|
Bettina EICK 1 - Computational group theory, cohomology of groups and topological methods |
|
15:15 - 16:15
|
Bettina EICK 2 - Computational group theory, cohomology of groups and topological methods |
|
16:30 - 17:30
|
Graham ELLIS 4 - Computational group theory, cohomology of groups and topological methods |
|
Time |
Event |
(+)
|
09:00 - 10:00
|
Bettina EICK 3 - Computational group theory, cohomology of groups and topological methods |
|
10:15 - 11:15
|
Bettina EICK 4 - Computational group theory, cohomology of groups and topological methods |
|
11:30 - 12:30
|
Alexander HULPKE 4 - Computational group theory, cohomology of groups and topological methods |
|
12:30 - 14:00
|
Lunch |
|
14:00 - 15:00
|
Phong NGUYEN 1 - Recent progress on lattices's computations |
|
15:15 - 16:15
|
Phong NGUYEN 2 - Recent progress on lattices's computations |
|
16:30 - 17:30
|
Alexander HULPKE 5 - Computational group theory, cohomology of groups and topological methods |
|
Time |
Event |
(+)
|
09:00 - 10:00
|
Bettina EICK 5 - Computational group theory, cohomology of groups and topological methods |
|
10:15 - 11:15
|
Graham ELLIS 5 - Computational group theory, cohomology of groups and topological methods |
|
11:30 - 12:30
|
Haluk SENGUN 1 - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
Time |
Event |
(+)
|
10:00 - 12:30
|
Welcome opening |
|
14:00 - 15:00
|
Haluk SENGUN 2 (zoom) - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
15:15 - 16:15
|
Paul GUNNELLS 1 (zoom, Philippe on-site) - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
16:30 - 17:30
|
Paul GUNNELLS 2 (zoom) - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
Time |
Event |
(+)
|
09:00 - 10:00
|
Aurel PAGE 1 - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
10:15 - 11:15
|
Aurel PAGE 2 - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
11:30 - 12:30
|
Peter PATZT 1 - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
12:30 - 14:00
|
Lunch |
|
14:00 - 15:00
|
Paul GUNNELLS 3 (zoom, Philippe on-site) - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
15:15 - 16:15
|
Jennifer WILSON 1 (zoom, Peter on-site) - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
16:30 - 17:30
|
Jennifer WILSON 2 (zoom, Peter on-site) - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
Time |
Event |
(+)
|
09:00 - 10:00
|
Peter PATZT 2 (exercice and Q&A session) - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
10:15 - 11:15
|
Peter PATZT 2 (exercice and Q&A session) - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
11:30 - 12:30
|
Philippe ELBAZ 1 - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
12:30 - 14:00
|
Dinner |
|
14:00 - 15:00
|
Paul GUNNELLS 4 (zoom, Philippe on-site) - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
15:15 - 16:15
|
Philippe ELBAZ 2 - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
16:30 - 17:30
|
Jennifer WILSON 3 (zoom, Peter on-site) - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
Time |
Event |
(+)
|
09:00 - 10:00
|
Peter PATZT 3 - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
10:15 - 11:15
|
Philippe ELBAZ 3 - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
11:30 - 12:30
|
Philippe ELBAZ 4 - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
12:30 - 14:00
|
Lunch |
|
14:00 - 15:00
|
Paul GUNNELLS 5 (zoom, Philippe on-site) - Cohomology of arithmetic groups and number theory: geometric, asymptotic and computational aspects |
|
15:15 - 16:15
|
Peter PATZT 4 (Jenny present on zoom) - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
16:30 - 17:30
|
Peter PATZT / Jennifer WILSON (exercice and Q&A session) - High dimensional cohomology of SL_n(Z) and its principal congruence subgroups |
|
Time |
Event |
(+)
|
09:30 - 11:00
|
Philippe ELBAZ/Paul GUNNELLS - Further directions and open problems |
|
11:15 - 12:45
|
Peter PATZT/Jennifer WILSON - Further directions and open problems |
|
Time |
Event |
(+)
|
15:00 - 16:00
|
Richard Hill - Fractional weight modular forms * joint session with COGENT regular seminar * (zoom) |
|
16:00 - 17:00
|
Michael Lipnowski * joint session with COGENT regular seminar * (zoom) - TBA |
|
Time |
Event |
(+)
|
09:30 - 10:30
|
Haowen Zhang - Brauer-Manin and cohomological obstructions to rational points |
|
11:00 - 12:00
|
Alexander Rahm - Verification of the Quillen conjecture in the rank 2 imaginary quadratic case |
|
12:00 - 14:00
|
Lunch |
|
14:00 - 15:00
|
Petru Constantinescu - On the distribution of modular symbols and cohomology classes |
|
15:15 - 16:15
|
Angelica Babei - A family of $\phi$-congruence subgroups of the modular group (zoom) |
|
16:15 - 17:15
|
Zachary Himes - On not the rational dualizing module for $\text{Aut}(F_n)$ (zoom) |
|
Time |
Event |
(+)
|
09:30 - 10:30
|
Lewis Combes - Computing Selmer groups attached to mod p Galois representations |
|
11:00 - 12:00
|
Oussama Hamza - Hilbert series and mild groups |
|
12:00 - 14:00
|
Lunch |
|
14:00 - 15:00
|
Kieran Child - Computation of weight 1 modular forms |
|
15:15 - 15:45
|
Kalani Thalagoda - Bianchi modular forms (zoom) |
|
16:00 - 17:00
|
Calista Bernard - Applications of twisted homology operations for E_n-algebras (zoom) |
|
Time |
Event |
(+)
|
09:30 - 10:30
|
Tobias Braun - Orthogonal Determinants |
|
11:00 - 12:00
|
Leonie Scheeren - The Voronoi Algorithm for calculating unit groups |
|
12:00 - 14:00
|
Lunch |
|
14:00 - 15:00
|
Tobias Moede - Coclass theory for nilpotent associative algebras (zoom) |
|
15:00 - 16:00
|
Benjamin Brück - High-dimensional rational cohomology of $\operatorname{SL}_n(\mathbb{Z})$ and $\operatorname{Sp}_{2n}(\mathbb{Z})$ (zoom) |
|
16:00 - 17:00
|
Andrew Putman - The Steinberg representation is irreducible (zoom) |
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