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Lundi 15 Mai
| Heure: |
11:00 - 12:00 |
| Lieu: |
Salle B405, bâtiment B, LAGA, Institut Galilée, Université Paris 13 |
| Résumé: |
Modélisation et Calcul Scientifique - Scattering of topological edge waves in Kekule structures - |
| Description: |
Antonin Coutant
Kekule structures are graphene-like lattices, with a modulation of the intersite coupling that preserves the hexagonal symmetry of the system. These structures possess very peculiar properties. In particular, they display topological phases manifested by the presence of edge waves propagating on the edge of a sample. We will discuss the extraordinary scattering properties of these edge waves across defects or disorder. We will also discuss how to realize Kekule structures in acoustic networks of waveguides. |
| Heure: |
14:00 - 17:00 |
| Lieu: |
IHP |
| Résumé: |
EDP & Physique mathématique - Séminaire Tournant IHP - |
Mercredi 17 Mai
| Heure: |
11:00 - 12:00 |
| Lieu: |
Salle B407, bâtiment B, LAGA, Institut Galilée, Université Paris 13 |
| Résumé: |
Modélisation et Calcul Scientifique - Domain Truncation, Absorbing Boundary Conditions, Schur Complements, and Padé Approximation - |
| Description: |
Michal Ouatatra |
| Heure: |
15:15 - 17:00 |
| Lieu: |
Salle B405, bâtiment B, LAGA, Institut Galilée, Université Paris 13 |
| Résumé: |
Topologie algébrique - Twisting K-theory classes from Seiberg-Witten Floer data - |
| Description: |
Alice HedenlundSeiberg-Witten theory has played a central role in the study of smooth
low-dimensional manifolds since their introduction in the 90s. Parallel
to this, Cohen, Jones, and Segal asked the question of whether various
types of Floer homology could be upgraded to the homotopy level by
constructing (stable) homotopy types encoding Floer data. In 2003,
Manolescu constructed Seiberg-Witten Floer spectra for rational homology
3-spheres, and later used these to settle the triangulation conjecture.
How to construct Seiberg--Witten Floer spectra for all 3-manifolds is
still open. |
Vendredi 19 Mai
| Heure: |
10:30 - 12:00 |
| Lieu: |
Salle B407, bâtiment B, LAGA, Institut Galilée, Université Paris 13 |
| Résumé: |
Géométrie Arithmétique et Motivique - (annulé) - |
| Description: |
Amina Abdurrahman |
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