activity
20142025
most citedOn the birational geometry of Hilbert schemes of points and Severi divisors

1 citations · 2 across the 8 of their papers we have counts for

collaborators

9 papers

math.AG2025

Explicit birational geometry of determinantal quartic 3-folds

Manuel Leal, César Lozano Huerta, Montserrat Vite

A general linear determinantal quartic in is nodal, non--factorial and rational. We show that the family of such quartics also contains rat…

math.AG2024

Geometry of syzygies of sheaves on via interpolation and Bridgeland stability

Manuel Leal, Cesar Lozano Huerta, Tim Ryan

We show that the minimal free resolution of a general semi-stable sheaf on contains a subcomplex that determines an extremal ray of the cone of effective divisor…

math.AG2021

Minimal free resolutions of sheaves on the projective plane and the stable base locus decomposition of their moduli spaces

Manuel Leal, César Lozano Huerta, Tim Ryan

The purpose of this paper is to incorporate minimal free resolutions into the study of the birational geometry of the moduli space of coherent sheaves on the plane with character $…

math.AG2020

On the weak Lefschetz principle in birational geometry

César Lozano Huerta, Alex Massarenti

This is an expository article written for the Notices of the AMS in which we discuss the weak Lefschetz Principle in birational geometry. Our departing point is the influential wor…

math.AG2018

The Lefschetz principle in birational geometry: birational twin varieties

César Lozano Huerta, Alex Massarenti

Inspired by the Weak Lefschetz Principle, we study when a smooth projective variety fully determines the birational geometry of some of its subvarieties. In particular, we consider…

math.AG2018★ 1 cited

On the birational geometry of Hilbert schemes of points and Severi divisors

Cesar Lozano Huerta, Tim Ryan

We study the birational geometry of Hilbert schemes of points on non-minimal surfaces. In particular, we study the weak Lefschetz Principle in the context of birational geometry. W…

math.HO2016

Curvas algebraicas y la pregunta de Halphen

Cesar Lozano Huerta

This is an expository paper written in Spanish. This paper discusses the answer and ideas around the Halphen question: what are the pairs (g,d) that occur as the genus and degree o…

math.AG2016★ 1 cited

Extremal higher codimension cycles of the space of complete conics

César Lozano Huerta

Let denote the space of complete conics. We compute the cone of effective and numerically effective -cycles of , and , respectively…

math.AG2014

Birational Geometry of the Space of Complete Quadrics

César Lozano Huerta

We study the birational geometry of the moduli space of complete -quadrics . We exhibit generators for Eff and Nef, the cone of effective divisors and the cone of n…