Seminario del 2020

Generating functions whose coefficients count maps (ribbon graphs) and hypermaps (Grothendieck's dessins d'enfant) satisfy several remarkable integrability properties. In particular, they obey Virasoro constraints, evolution equations, Kadomtsev-Petviashvili (KP) hierarchy and a topological recursion. (After a joint work with M. Kazarian)

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