Séminaires, Conférences

Page web du Colloque : Colloque de mathématiques

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Prochainement

Agenda complet

Séminaire 05.12.2022 16:15
Percolation on homogeneous graphs of polynomial growth
Bernoulli percolation consists in erasing independently each edge of a graph G with some probability 1-p and studying the connected components (called clusters) of this random graph. Of interest is the parameter pc(G) above which infinite clusters exist.…
Conseil Général 7-9 / Room 1-15, Séminaire "Mathématique-Physique"
Séminaire 06.12.2022 10:30
Spectral constructions of elliptic-type Eisenstein series and automorphic forms (The City College of New York, CUNY)
We will describe results in which we use analytic techniques from spectral theory to construct non-holomorphic Eisenstein series, determine their Kronecker limit functions, and identity such functions as log-norms of holomorphic modular forms. When the…
Conseil Général 7-9 / Room 1-05, Tuesday 06.12.2022, Séminaire Groupes et géométrie
Séminaire 06.12.2022 14:00
Conservative stabilized Runge—Kutta methods for the Vlasov—Fokker—Planck equation (Ibrahim Almuslimani, INRIA Rennes and Université de Rennes 1)
In this work, we aim at constructing numerical schemes, that are as efficient as possible in terms of cost and conservation of invariants, for the Vlasov—Fokker—Planck system coupled with Poisson or Ampère equation. Splitting methods are used where the…
Conseil Général 7-9 / Room 1-05, Séminaire d'analyse numérique
Séminaire 06.12.2022 15:30 – 16:30
Euler characteristics of tautological vector bundles on parabolic moduli spaces
The Verlinde formula, an expression for the Euler characteristic of line bundles on the moduli spaces of vector bundles on Riemann surfaces, is one of the most beautiful results in modern enumerative geometry. In this talk, I will present a…
Conseil Général 7-9 / Room 1-07, Séminaire "Groupes de Lie et espaces de modules"
Séminaire 08.12.2022 13:15
Deep learning basics and the problem of implicit regularization (Benoit Dherin, Google)
In the first part of this talk, we will recall the building blocks of deep learning, framing the learning problem as an optimization problem solved in practice by gradient descent. This first part will be very accessible and self-contained. Then we will…
Conseil Général 7-9 / Room 1-15, Attn. unusual time, Séminaire "Topologie et géométrie"
Séminaire 09.12.2022 13:45
R-matrix formalism for qq-characters in gauge theories
qq-characters can be viewed in two ways. From physics point of view they are certain observables in supersymmetric gauge theories with eight supercharges having special regularity properties. Two q letters indicate two deformation parameters of the…
Conseil Général 7-9 / Room 6-13, Séminaire "Physical Mathematics Seminar Series"
Séminaire 13.12.2022 14:00
Schwarz methods, Schur complements, preconditioning and numerical linear algebra (Michal Outrata, UNIGE)
PhD defense
Conseil Général 7-9 / Room 1-05, Séminaire d'analyse numérique
Séminaire 14.12.2022 17:15
TAP variational principle for the multiple SSK spin-glass model
Spin-glasses originally have been studied to model and understand the behaviour of certain alloys, but became increasingly interesting as models for various complex (particle interaction) systems such as for climate/weather and machine learning as well.…
Conseil Général 7-9 / Room 1-05, Graduate Seminar
Séminaire 15.12.2022 13:15
Why neural networks find (geometrically) simple solutions (Benoit Dherin, Google)
We will start by defining a notion of geometric complexity for neural networks based on intuitive notions of volume and energy. This will be motivated by the visualization of training sequences in the case of simple 1d neural regressions. Then we will…
Conseil Général 7-9 / Room 1-15, Attn. unusual time, Séminaire "Topologie et géométrie"
Colloque 15.12.2022 16:15
Critical Phenomena Through the Lens of the Ising Model
The Ising model is one of the most classical lattice models of statistical physics undergoing a phase transition. Initially imagined as a model for ferromagnetism, it revealed itself as a very rich mathematical object and a powerful theoretical tool to…
Conseil Général 7-9 / Room 1-15
Séminaire 16.12.2022 14:00 – 15:00
Tensor train approximation of deep transport maps for Bayesian inverse problems - (Sergey Dolgov, University of Bath)
Tensor train approximation of deep transport maps for Bayesian inverse problems. Characterising intractable high-dimensional random variables is one of the fundamental challenges in stochastic computation. We develop a deep transport map that is…
Conseil Général 7-9 / Room 1-15, Séminaire d'analyse numérique

SéminairePercolation on homogeneous graphs of polynomial growth
05.12.2022 16:15 / Conseil Général 7-9 / Room 1-15, Séminaire "Mathématique-Physique"
En savoir plus
SéminaireSpectral constructions of elliptic-type Eisenstein series and automorphic forms (The City College of New York, CUNY)
06.12.2022 10:30 / Conseil Général 7-9 / Room 1-05, Tuesday 06.12.2022, Séminaire Groupes et géométrie
En savoir plus
SéminaireConservative stabilized Runge—Kutta methods for the Vlasov—Fokker—Planck equation (Ibrahim Almuslimani, INRIA Rennes and Université de Rennes 1)
06.12.2022 14:00 / Conseil Général 7-9 / Room 1-05, Séminaire d'analyse numérique
En savoir plus

SéminaireEuler characteristics of tautological vector bundles on parabolic moduli spaces
06.12.2022 15:30 – 16:30 / Conseil Général 7-9 / Room 1-07, Séminaire "Groupes de Lie et espaces de modules"
En savoir plus
SéminaireDeep learning basics and the problem of implicit regularization (Benoit Dherin, Google)
08.12.2022 13:15 / Conseil Général 7-9 / Room 1-15, Attn. unusual time, Séminaire "Topologie et géométrie"
En savoir plus
SéminaireR-matrix formalism for qq-characters in gauge theories
09.12.2022 13:45 / Conseil Général 7-9 / Room 6-13, Séminaire "Physical Mathematics Seminar Series"
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SéminaireSchwarz methods, Schur complements, preconditioning and numerical linear algebra (Michal Outrata, UNIGE)
13.12.2022 14:00 / Conseil Général 7-9 / Room 1-05, Séminaire d'analyse numérique
En savoir plus
SéminaireTAP variational principle for the multiple SSK spin-glass model
14.12.2022 17:15 / Conseil Général 7-9 / Room 1-05, Graduate Seminar
En savoir plus
SéminaireWhy neural networks find (geometrically) simple solutions (Benoit Dherin, Google)
15.12.2022 13:15 / Conseil Général 7-9 / Room 1-15, Attn. unusual time, Séminaire "Topologie et géométrie"
En savoir plus

ColloqueCritical Phenomena Through the Lens of the Ising Model
15.12.2022 16:15 / Conseil Général 7-9 / Room 1-15
En savoir plus
SéminaireTensor train approximation of deep transport maps for Bayesian inverse problems - (Sergey Dolgov, University of Bath)
16.12.2022 14:00 – 15:00 / Conseil Général 7-9 / Room 1-15, Séminaire d'analyse numérique
En savoir plus

Contact. secrétariat de la Section de mathématiques (022 379 11 51).

Séminaires, Conférences

Prochainement

Percolation on homogeneous graphs of polynomial growth

Spectral constructions of elliptic-type Eisenstein series and automorphic forms (The City College of New York, CUNY)

Conservative stabilized Runge—Kutta methods for the Vlasov—Fokker—Planck equation (Ibrahim Almuslimani, INRIA Rennes and Université de Rennes 1)

Euler characteristics of tautological vector bundles on parabolic moduli spaces

Deep learning basics and the problem of implicit regularization (Benoit Dherin, Google)

R-matrix formalism for qq-characters in gauge theories

Schwarz methods, Schur complements, preconditioning and numerical linear algebra (Michal Outrata, UNIGE)

TAP variational principle for the multiple SSK spin-glass model

Why neural networks find (geometrically) simple solutions (Benoit Dherin, Google)

Critical Phenomena Through the Lens of the Ising Model

Tensor train approximation of deep transport maps for Bayesian inverse problems - (Sergey Dolgov, University of Bath)

SéminairePercolation on homogeneous graphs of polynomial growth

SéminaireSpectral constructions of elliptic-type Eisenstein series and automorphic forms (The City College of New York, CUNY)

SéminaireConservative stabilized Runge—Kutta methods for the Vlasov—Fokker—Planck equation (Ibrahim Almuslimani, INRIA Rennes and Université de Rennes 1)

SéminaireEuler characteristics of tautological vector bundles on parabolic moduli spaces

SéminaireDeep learning basics and the problem of implicit regularization (Benoit Dherin, Google)

SéminaireR-matrix formalism for qq-characters in gauge theories

SéminaireSchwarz methods, Schur complements, preconditioning and numerical linear algebra (Michal Outrata, UNIGE)

SéminaireTAP variational principle for the multiple SSK spin-glass model

SéminaireWhy neural networks find (geometrically) simple solutions (Benoit Dherin, Google)

ColloqueCritical Phenomena Through the Lens of the Ising Model

SéminaireTensor train approximation of deep transport maps for Bayesian inverse problems - (Sergey Dolgov, University of Bath)