Carlos A. Alfaro

activity

20102023

most citedOn the Sandpile group of the cone of a graph

37 citations · 69 across the 13 of their papers we have counts for

collaborators

Showing 2019Show all

2 papers · 1 filter

math.CO2019★ 4 cited

Eigenvalues, Smith normal form and determinantal ideals

Aida Abiad, Carlos A. Alfaro, Kristin Heysse +1

Determinantal ideals of graphs generalize, among others, the spectrum and the Smith normal form (SNF) of integer matrices associated to graphs. In this work we investigate the rela…

math.CO2019

On transversal and 2-packing numbers in uniform linear systems

Carlos A. Alfaro, G. Araujo-Pardo, C. Rubio-Montiel +1

A linear system is a pair $(P, L)$ where $L$ is a family of subsets on a ground finite set $P$ , such that $∣ l \cap l^{'} ∣ \leq 1$ , for every $l,l^\prime \in \ma…