2 citations · 2 across the 3 of their papers we have counts for
3 papers
math.AG2005
A family of marked cubic surfaces and the root system D_5
Elisabetta Colombo, Bert van Geemen
We define and study a family of cubic surfaces in the projectivized tangent bundle over a four dimensional projective space associated to the root system D_5. The 27 lines are rati…
math.AG2004★ 2 cited
Hessians and the moduli space of cubic surfaces
Elisa Dardanelli, Bert van Geemen
The Hessian of a general cubic surface is a nodal quartic surface, hence its desingularisation is a K3 surface. We determine the transcendental lattice of the Hessian K3 surface fo…
math.AG2004
Some remarks on Brauer groups of K3 surfaces
Bert van Geemen
We discuss the geometry of the genus one fibrations associated to an elliptic fibration on a K3 surface. We show that the two-torsion subgroup of the Brauer group of a general elli…