Gloria Tabarelli

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math.CO2025

Geometric description of $d$ -dimensional flows of 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.CO2021

Graphs with large palette index

Davide Mattiolo, Giuseppe Mazzuoccolo, Gloria Tabarelli

Given an edge-coloring of a graph, the palette of a vertex is defined as the set of colors of the edges which are incident with it. We define the palette index of a graph as the mi…

Geometric description of d-dimensional flows of a graph

Graphs with large palette index

Geometric description of $d$ -dimensional flows of a graph