Giovedì 11 Maggio alle ore 14:15, Mattia Talpo (Università degli Studi di Pisa) terrà il seminario di Geometria dal titolo "Level structures on logarithmic (and tropical) curves".
Abstract: Level structures are extra data that can be added to some moduli problems in order to rigidify the situation. For example, in the case of curves, they yield smooth Galois covers of the moduli space M_g, and the problem of extending this picture to the boundary was studied by several authors, using in particular admissible covers and twisted curves. I will report on some work in progress with M. Ulirsch and D. Zakharov, in which we consider a tropical notion of level structure on a tropical curve. The moduli space of these is expected to be closely related to the boundary complex of the stack of G-admissible covers. As usual, logarithmic geometry stands in the middle and provides a convenient language to bridge the two worlds.
Il seminario si svolgerà in presenza nell'aula M1. Per ulteriori informazioni, e per il link Teams per seguire il seminario a distanza, si può contattare gli organizzatori all'email firstname.lastname@example.org.
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