C. Dalf'o

activity

20162024

most citedOn inertia and ratio type bounds for the

k

-independence number of a graph and their relationship

1 citations · 4 across the 12 of their papers we have counts for

collaborators

Showing 2023Show all

3 papers · 1 filter

math.CO2023

Some bounds on the Laplacian eigenvalues of token graphs

Cristina Dalfó, Miquel Àngel Fiol, Arnau Messegué

The $k$ -token graph $F_{k} (G)$ of a graph $G$ on $n$ vertices is the graph whose vertices are the $(k n)$ $k$ -subsets of vertices from $G$ , two of which being adjacent wheneve…

math.CO2023

On the spectra of token graphs of cycles and other graphs

Mónica. A. Reyes, Cristina Dalfó, Miquel Àngel Fiol +1

The $k$ -token graph $F_{k} (G)$ of a graph $G$ is the graph whose vertices are the $k$ -subsets of vertices from $G$ , two of which being adjacent whenever their symmetric difference is…

math.CO2023

On large regular (1,1,k)-mixed graphs

C. Dalfó, G. Erskine, G. Exoo +4

An $(r, z, k)$ -mixed graph $G$ has every vertex with undirected degree $r$ , directed in- and out-degree $z$ , and diameter $k$ . In this paper, we study the case $r = z = 1$ , proposing som…