3 papers
math.AG2020
Marked and labelled Gushel-Mukai fourfolds
Emma Brakkee, Laura Pertusi
We prove that the moduli stacks of marked and labelled Hodge-special Gushel-Mukai fourfolds are isomorphic. As an application, we construct rational maps from the stack of Hodge-sp…
math.AG2019
Moduli spaces of twisted K3 surfaces and cubic fourfolds
Emma Brakkee
Motivated by the relation between (twisted) K3 surfaces and special cubic fourfolds, we construct moduli spaces of polarized twisted K3 surfaces of any fixed degree and order. We d…
math.AG2018
Two polarized K3 surfaces associated to the same cubic fourfold
Emma Brakkee
For infinitely many , Hassett showed that special cubic fourfolds of discriminant are related to polarized K3 surfaces of degree via their Hodge structures. For half of…