Moduli of degree 4 K3 surfaces revisited

Moduli of degree 4 K3 surfaces revisited - Radu Laza

Radu Laza
Stony Brook University; von Neumann Fellow, School of Mathematics
February 3, 2015
For low degree K3 surfaces there are several way of constructing and compactifying the moduli space (via period maps, via GIT, or via KSBA). In the case of degree 2 K3 surface, the relationship between various compactifications is well understood by work of Shah, Looijenga, and others. I will report on work in progress with K. O’Grady which aims to give similar complete description for degree 4 K3s.