J. Veliz

collaborators

2 papers

math.AG2026

Proper moduli spaces of isolated non-normal singularities

Jiucheng Dai, Daniel Halpern-Leistner, Mingjun Sun +2

We study the moduli of isolated non-normal singularities by introducing the functor $Crimp_{S}^{d} (X)$ of crimpings of $(X \to S)$ corank $d$ . This globalizes Ishii's moduli f…

math.CO2023

Lattice Path Delta Matroids

Douglas M. Chen, Mario Sanchez, John Veliz +1

We initiate the study of a type $C_{n}$ generalization of the lattice path matroids defined by Bonin, de Mier, and Noy. These are delta matroids whose feasible sets are in bijection…