| Equipe(s) : | co, gr, tn, tga, |
| Responsables : | Karim Adiprasito, Harald Helfgott, Vasso Petrotou and Arina Voorhaar |
| Email des responsables : | harald.helfgott@gmail.com, karim.adiprasito@imj-prg.fr |
| Salle : | 1516-2-01 |
| Adresse : | Jussieu |
| Description | Les sujets sont ceux décrits par le titre :). Ils doivent être compris dans un sens large. Notre objectif est de nous réunir avec une périodicité mensuelle. https://sites.google.com/view/combarithmgeo/home?authuser=0 |
| Orateur(s) | Veronica Fantini - Orsay, Eitan Bachmat - Ben Gurion University, |
| Titre | Fantini and Bachmat |
| Date | 30/06/2025 |
| Horaire | 11:30 à 12:00 |
| |
| Diffusion | https://cnrs.zoom.us/j/92318027540?pwd=rduObmTSjxvPWPue3i7aKr3hyUranh.1 |
| Résume | Schedule 11:30-12:30: Veronica Fantini (LMO, Orsay)
Title: Resurgent series from local Calabi-Yau threefolds and arithmetic Abstract: Formal divergent power series appear in various contexts, and the theory of resurgence introduced by Écalle is a prominent tool to study them. In fact, it associates to a divergent power series a collection of exponentially small corrections with a set of complex numbers known as Stokes constants. In this talk, I will introduce some of the main ideas of resurgence and discuss the arithmetic structure of the Stokes constants of the divergent series associated with locally weighted projective spaces.
14:45-15:45: Eitan Bachmat (Ben-Gurion University)
Title: Combinatorics, geometry and lenses
Abstract: We will explore the connection between combinatorial notions such as the chain polytope and the entropy of a poset, Lorentzian geometry and super lenses in hyperbolic metamaterials. |
| Salle | 1516-4-13 |
| Adresse | Jussieu |