2 papers
hep-th2025
Orientifolds for F-theory on K3 Surfaces
Charles Doran, Andreas Malmendier, Stefan Mendez-Diez +1
We study F-theory orientifolds, starting with products of two elliptic curves, but focusing mostly on a family of K3 surfaces, lattice polarized by the rank-17 lattice $\langle 8 \…
math.AG2024
Normal Forms and Tyurin Degenerations of K3 Surfaces Polarised by a Rank 18 Lattice
Charles F. Doran, Joseph Prebble, Alan Thompson
We study projective Type II degenerations of K3 surfaces polarised by a certain rank 18 lattice, where the central fibre consists of a pair of rational surfaces glued along a smoot…