Speaker
Prof.
Ignacio Barros
(University of Antwerp, Antwerp)
Description
We will discuss various aspects of the divisor geometry of moduli spaces of K3 surfaces. We provide a finite generating set of Noether—Lefschetz divisors for the Picard group, study the structure of the NL-cone, and establish numerical criteria for when a NL divisor on a moduli space of quasi-polarized K3 surfaces $F_{2d}$, or more generally on an orthogonal modular variety, generates an extremal ray in the cone of pseudoeffective divisors. This is based on joint works with L. Flapan, R. Zuffetti, and Shi He.
Primary author
Prof.
Ignacio Barros
(University of Antwerp, Antwerp)
