ICTP ALGEBRAIC GEOMETRY & TRINO 2022 - Wednesday 22 December, at 16:00 (Simone Billi) - PLEASE NOTE UNUSUAL VENUE

[ICTP Math Section]

_ICTP ALGEBRAIC GEOMETRY & TRINO 2022_

Wednesday 21 December, at 16:00 hrs.

*VENUE:  Room D (old SISSA building)


Speaker: Simone Billi (University of Bologna)

Title: Double EPW-sextics with actions of A7 and irrational GM threefolds

Abstract: We construct two examples of projective hyper-Kähler fourfolds 
of K3[2]-type with an action of the alternating group A7, making them 
some of the most symmetric hyper-Kähler fourfolds. They are realized as 
so called double EPW sextics and this allows us to construct an explicit 
family of irrational Gushel-Mukai threefolds.

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