3 papers
math.AG2026
Higher rank bundles on Hopf surfaces
Edoardo Ballico, Elizabeth Gasparim
We show that all filtrable bundles on a Hopf surface must have jumps and we prove the existence of filtrable stable bundles on with any value of . On a somewhat oppo…
math.AG2025
Irregular bundles on Hopf surfaces
Edoardo Ballico, Elizabeth Gasparim
We discuss the hypersurfaces of the moduli spaces of rank vector bundles on a classical Hopf surface formed by irregular bundles.
hep-th2025
F-theory with hyperelliptic fibrations
E. Ballico, E. Gasparim, M. P. García del Moral +1
We discuss the role of hyperelliptic fibrations in F-theory. For each even integer we give a noncompact Calabi--Yau threefold containing a hyperelliptically fibered surface…