G. Casnati

activity

20242026

collaborators

3 papers

math.AG2026

A remark by Daniel Ferrand on bundles on Fano threefolds

Gianfranco Casnati, Angelo Felice Lopez

Let $X$ be a Fano threefold with index $i_{X}$ and fundamental line bundle $O_{X} (h)$ . We classify $I^¼$ -semistable rank two bundles $E$ on $X$ with $c_1(\mathcal E)=0…

math.AG2025

Ulrich and Instanton Bundles on Special Cubic Fourfolds

Gianfranco Casnati, Daniele Faenzi, Federica Galluzzi

We study instanton and Ulrich bundles on hypersurfaces of the projective space, with a focus on special cubic fourfolds and generalized Pfaffians, notably defined by skew-symmetric…

math.AG2024

Steiner representations of hypersurfaces

Vincenzo Antonelli, Gianfranco Casnati

Let $X \subseteq P^{n + 1}$ be an integral hypersurface of degree $d$ . We show that each locally Cohen-Macaulay instanton sheaf $E$ on $X$ with respect to $\mathcal…