Séminaire d'Analyse

Malamut, Hugo
24 Mars 2025, 14:00 → 15:00
Amphi Schwartz

Entropic optimal transport is widely used in practice to compute optimal transport costs and maps. This is why the study of the convergence rates towards the unregularized problem is important. I will present how to …

Séminaire de Probabilités

Baars, Justin
25 Mars 2025, 09:50 → 10:50

We introduce a spatiotemporal self-exciting point process $(N_t(x))$, boundedly finite both over time $[0,\infty)$ and space $\mathscr X$, with excitation structure determined by a graphon $W$ on $\mathscr{X}^2$. …

Séminaire de Statistique et Optimisation

Barry, Adama
Gossard, Florian
Koprinkov, Robert
25 Mars 2025, 10:15 → 12:20
1R3, 1er étage

Robert Koprinkov (10:15 -> 10:45) Toward Physics-Constrained Gaussian Process regression Abstract: Gaussian Process regression has often been used for the modeling of physical problems. Solutions of these …

GdT Géométrie Algébrique Complexe

Dewer, Bruno
25 Mars 2025, 11:00 → 12:00
IMT

Mikhail Ovcharenko offers an alternative definition of weighted generalised Grassmannians to that of Corti-Reid and Qureshi-Szendroi. I will go over the older definition and its difference with the alternative one, …

Séminaire MAC

Camps, Nicolas
25 Mars 2025, 11:15 → 12:15
IMT

This talk is devoted to a probabilistic approach to the cubic nonlinear Schrödinger equation (NLS) on the two-dimensional sphere, where we study the collective behavior of random initial data supported below the …

Séminaire de Géométrie et Topologie

Valdez, Ferran
25 Mars 2025, 11:15 → 12:15
1R2-207

In this talk we describe a dictionary between a family of (holomorphic) homogeneous quadratic fields in C^2 and translation surfaces defined by unfolding a triangular billiard. This dictionary translates the …

Séminaire d'Homotopie et Géométrie Algébrique

Buccisano, Carlo
25 Mars 2025, 14:00 → 15:00
Salle Pellos

After brief recalls (of classical D-modules and derived algebraic geometry), we'll introduce different notions of D-modules in the setting of derived algebraic geometry. One natural definition is sheaves on the de …

GdT Calcul des Variations

26 Mars 2025, 14:30 → 15:30
Salle Picard (1R2-129)

Existence of "bimerons" by a concentration-compactness argument relying on proximity with harmonic maps, in a restricted range of parameters. To be compared with the simpler argument for "skyrmions".

Séminaire QUID

Mme Merz, Alice
26 Mars 2025, 18:00 → 19:15
IMT 1R2

Title: Slice knots and exotic R^4's Abstract: Knots are a fundamental tool to understand 3- and 4-dimensional topology. A particularly relevant class of knots, having close connection to 4-manifolds topology, …

Conférences

27 Mars 2025, 08:00 → 16:45
IMT, Batiment 1R3

En partenariat avec Animaths, Femmes&mathématiques, l'Institut de mathématiques de Toulouse organise les Journées Filles, Maths et Informatique.  L'objectif de cette journée est d'encourager les jeunes femmes …