4 papers
math.AG2026
On the meagerness of the set of irregular bundles on Hopf surfaces
Edoardo Ballico, Elizabeth Gasparim
Let denote the moduli space of stable bundles with rank and second Chern class on a Hopf surface. We prove that the subset of formed…
math.AG2025
Connected moduli of instantons on
Elizabeth Gasparim
I prove connectedness of the moduli space of instantons on with charge .
math.AG2025
Some contributions of Edoardo Ballico to Moduli spaces and their applications
Elizabeth Gasparim
This is a contribution to the Special Volume in Celebration of the 70th Birthday of Edoardo Ballico. First, I describe how some results of Ballico on moduli of vector bundles and c…
hep-th2025
F-theory with hyperelliptic fibrations
E. Ballico, E. Gasparim, M. P. GarcÃa 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…