Cari tutti,
il prossimo seminario di geometria algebrica e aritmetica di Pisa si terrà mercoledì 24 novembre alle 15:00 in AULA SEMINARI (primo piano) del Dipartimento di Matematica, e non in Aula Magna.
Il programma è lo stesso: ------------------
15:00--16:00 Andrea Ferraguti (Pisa): Abelian dynamical Galois groups
Dynamical Galois groups are invariants associated to dynamical systems generated by the iteration of a self-rational map of P^1. These are still very mysterious objects, and it is conjectured that abelian groups only appear in very special cases. We will show how the problem is deeply related to a dynamical property of these rational maps (namely that of being post-critically finite) and we will explain how to approach and prove certain non-trivial cases of the conjecture. This is based on joint works with A. Ostafe, C. Pagano and U. Zannier.
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Chiederei agli interessati di compilare il seguente semplice modulo Doodle (misure Covid): https://doodle.com/poll/8wvpz7e53m3tghva?utm_source=poll&utm_medium=link
Homepage del seminario: http://pagine.dm.unipi.it/tamas/saga.html
Migliori saluti, Tamás Szamuely _______________________________________________