4 papers · 1 filter
Szegő kernels and Scorza quartics on the moduli space of spin curves
Gavril Farkas, Elham Izadi
We describe an extension at the level of the moduli space of stable spin curves of genus g of the map associating to an ineffective spin structure its Scorza curve (equivalently, t…
Some density results for hyperkähler manifolds
Yajnaseni Dutta, Elham Izadi, Ljudmila Kamenova +1
Lagrangian fibrations of hyperkähler manifolds are induced by semi-ample line bundles which are isotropic with respect to the Beauville-Bogomolov-Fujiki form. For a non-isotrivial…
The moduli space of étale double covers of genus 5 curves is unirational
E. Izadi, M. Lo Giudice, G. K. Sankaran
We show that the coarse moduli space $\cR_5$ of étale double covers of curves of genus~5 over the complex numbers is unirational. We give two slightly different arguments, one pure…
Half twists and the cohomology of hypersurfaces
Bert van Geemen, Elham Izadi
A Hodge structure V of weight k on which a CM field acts defines, under certain conditions, a Hodge structure of weight k-1, its half twist. In this paper we consider hypersurfaces…