[Dottorcomp] Seminari di Algebra e Geometria - martedì 17 giugno 2025

[Lidia Stoppino]

Martedì 17 giugno ci saranno due seminari in aula Beltrami:

alle 16,00 precise
Thomas Krämer (Università di Berlino)

terrà un seminario dal titolo:
The Shafarevich conjecture for varieties with globally generated cotangent
bundle

Abstract: On his way to the Mordell conjecture, Faltings proved that over
any number field there are only finitely many smooth projective curves of
given genus g > 1 with good reduction outside a given finite set of primes.
This had been conjectured by Shafarevich at the ICM in 1962 along with a
geometric finiteness statement for non-isotrivial families of complex
curves. Similar finiteness results are expected to hold for a much larger
class of higher-dimensional varieties, but very little is known. In the
talk I will discuss recent work with Marco Maculan in which we prove the
Shafarevich conjecture for a large class of canonically polarized
varieties; the main geometric ingredient is a big monodromy theorem for
families of smooth projective varieties with finite unramified Albanese
morphism that extends our previous work with Javanpeykar and Lehn.
Towards algebraic Gelfand duality

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Alle 17,15
Nathan Chen (Università di Harvard)

terrà un seminario dal titolo:
On rational group actions in families

Abstract: In this talk, we will explore some variational properties of the
degree of irrationality for algebraic surfaces, especially in the presence
of a rational group action. This is joint work with L. Esser.

Tutti gli interessati sono cordialmente invitati a partecipare.

Chi vuole venire a cena scriva ENTRO VENERDÌ a me, a Filippo Favale <
filippo.favale a unipv.it> e a Davide Bricalli <davide.bricalli a unipv.it>.
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Lidia Stoppino
Dipartimento di Fisica e Matematica
Universita' dell'Insubria
Via Valleggio 11, 22100 COMO
Tel. +39 031 2386132
e-mail: lidia.stoppino a unipv.it
lidia.stoppino a uninsubria.it