Robert Laterveer (IRMA Strasbourg)

Title: Algebraic cycles and Verra fourfolds

Abstract: 
A Verra fourfold is a smooth projective complex variety defined as a double cover 
of P^2 x P^2 branched along a divisor of bidegree (2,2). These varieties are similar 
to cubic fourfolds in several ways (Hodge theory, relation to hyperkaehler fourfolds, 
derived categories). Inspired by these multiple analogies, I consider the Chow ring of 
a Verra fourfold. Among other things, I will show that the multiplicative structure of 
this Chow ring has a curious K3-like property.