2 papers
math.AG2026
A complete classification of modular compactifications of the universal Jacobian
Marco Fava, Nicola Pagani, Filippo Viviani
This is the third paper in a series, following [FPVa] and [FPVb]. We classify all modular compactifications of the universal Jacobian over , both as s…
math.AG2025
Moduli of sheaves on ribbons
Michele Savarese, Filippo Viviani
We study the geometry of the moduli stack of torsion-free sheaves on ribbons. We introduce a stratification of the stack by the complete type of the sheaves, and we investigate the…