Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série SEM-DARBOUX
Domaines math,math.MP
Date Jeudi 24 Mai 2018
Heure 11:00
Institut LPTHE
Salle bibliothèque
Nom de l'orateur Chapoton
Prenom de l'orateur Frédéric
Addresse email de l'orateur chapoton [at] unistra [dot] fr
Institution de l'orateur Strasbourg
Titre On cluster varieties associated with trees
Résumé We will first recall the general framework of cluster algebras and cluster varieties attached to arbitrary quivers. We will then explain what can be said about interesting differential forms on these varieties when the quiver is a tree, and how counting points over finite fields gives a first idea about their cohomology. This will be illustrated with examples, and involve an amusing set of Feynman rules with 3 colors.
Numéro de preprint arXiv
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