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Graphs on surfaces and curves over number fields
March 8, 2023 18:30, Moscow, Lomonosov Moscow State University, room 14-15, 18:30 - 20:30


Towards tropical dessins d'enfants

E. M. Kreinesab, G. B. Shabatcd

a Tel Aviv University, School of Mathematical Sciences
b Lomonosov Moscow State University
c Independent University of Moscow
d Russian State University for the Humanities, Moscow



Abstract: There are several mathematical worlds inhabited by graphs with some additional structure. We are best acquanted with dessins d'enfants that are closely related to the metrized ribbon graphs. Allowing infinite lengths leads to the world of tropical curves and their moduli, which are connected to the classical moduli spaces by means of Berkovich non-archimedean analytic spaces.
We are going to summarize the connections between the above structures established in the recent papers by several authors and suggest our own ones, mostly conjectural. Several examples will be presented.

Language: English


© Steklov Math. Inst. of RAS, 2024