Gloria Tabarelli

activity

20212025

most citedOn the existence of graphs which can colour every regular graph

3 citations · 3 across the 6 of their papers we have counts for

collaborators

Showing 2023Show all

3 papers · 1 filter

math.CO2023

On $d$ -dimensional nowhere-zero $r$ -flows on a graph

Davide Mattiolo, Giuseppe Mazzuoccolo, Jozef Rajník +1

A $d$ -dimensional nowhere-zero $r$ -flow on a graph $G$ , an $(r, d)$ -NZF from now on, is a flow where the value on each edge is an element of $R^{d}$ whose (Euclidean) norm li…

math.CO2023

A lower bound for the complex flow number of a graph: a geometric approach

Davide Mattiolo, Giuseppe Mazzuoccolo, Jozef Rajník +1

Let $r \geq 2$ be a real number. A complex nowhere-zero $r$ -flow on a graph $G$ is an orientation of $G$ together with an assignment $φ : E (G) \to C$ such that, for all…

math.CO2023

A characterization of graphs with small palette index

Domenico Labbate, Davide Mattiolo, Giuseppe Mazzuoccolo +2

Given an edge-coloring of a graph $G$ , we associate to every vertex $v$ of $G$ the set of colors appearing on the edges incident with $v$ . The palette index of $G$ is defined as th…

On d-dimensional nowhere-zero r-flows on a graph

A lower bound for the complex flow number of a graph: a geometric approach

A characterization of graphs with small palette index

On $d$ -dimensional nowhere-zero $r$ -flows on a graph