A. Lopez

activity

20172025

collaborators

3 papers

math.AG2025

On the connectedness of some degeneracy loci and of Ulrich subvarieties

Valerio Buttinelli, Angelo Felice Lopez, Roberto Vacca

We study connectedness of degeneracy loci $D_{r - k} (φ)$ of morphisms $φ : O_{X}^{\oplus (r + 1 - k)} \to E$ , where $E$ is a rank $r$ globally generated bundle…

math.AG2019

Augmented and restricted base loci of cycles

Angelo Felice Lopez

We introduce augmented and restricted base loci of cycles and we study the positivity properties naturally defined by these base loci.

math.AG2017

Effective cycles on the symmetric product of a curve, I: the diagonal cone. (with an appendix by Ben Moonen)

Francesco Bastianelli, Alexis Kouvidakis, Angelo Felice Lopez +1

In this paper and in its sequel [BKLV], we investigate the cone $Pseff_{n} (C_{d})$ of pseudoeffective $n$ -cycles in the symmetric product $C_{d}$ of a smooth curve $C$ . In the pres…