| Orateur(s) | Johannes Nicaise - Imperial College Londres et KU Leuven,
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| Titre | Tropical obstructions to stable rationality |
| Date | 24/03/2021 |
| Horaire | 15:45 à 17:00 |
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| Diffusion | |
| Résume | In joint work with Evgeny Shinder, we have attached to every "sufficiently nice" degeneration of algebraic varieties an obstruction to the stable rationality of a very general fiber. I will explain how tropical geometry can be used to construct such degenerations, and give some applications to rationality problems. This is joint work with John Christian Ottem. |
| Salle | Demander le lien Zoom à olivier.biquard@sorbonne-universite.fr |
| Adresse | demande |
