55 citations · 145 across the 24 of their papers we have counts for
33 papers
Some inner metric parameters of a digraph: Iterated line digraphs and integer sequences
N. H. Bong, C. Dalfó, M. A. Fiol +1
In this paper, we first give a new result characterizing the strongly connected digraphs with a diameter equal to that of their line digraphs. Then, we introduce the concepts of th…
Structural and Spectral Properties of Chordal Ring, Multi-ring and Mixed Graphs
M. A. Reyes, C. Dalfó, M. A. Fiol
The chordal ring (CR) graphs are a well-known family of graphs used to model some interconnection networks for computer systems in which all nodes are in a cycle. Generalizing the…
A note on an infinite family of graphs with all different integral Laplacian eigenvalues
C. Dalfó, M. A. Fiol
In this note, we give an infinite family of optimal graphs called . They are optimal in the sense that they have the maximum possible number of vertices for given a diame…
On bipartite biregular large graphs
G. Araujo-Pardo, C. Dalfó, M. A. Fiol +1
A bipartite graph with is biregular if all the vertices of each stable set, and , have the same degree, and , respectively. This paper s…
Token graphs of Cayley graphs as lifts
C. Dalfó, M. A. Fiol, S. Pavlíková +1
This paper describes a general method for representing -token graphs of Cayley graphs as lifts of voltage graphs. This allows us to construct line graphs of circulant graphs and…
A general method to find the spectrum and eigenspaces of the -token of a cycle, and 2-token through continuous fractions
M. A. Reyes, C. Dalfó, M. A. Fiol +1
The -token graph of a graph is the graph whose vertices are the -subsets of vertices from , two of which being adjacent whenever their symmetric difference is…