1 citations · 1 across the 7 of their papers we have counts for
7 papers · 1 filter
There are no excess one digraphs
Slobodan Filipovski, Arnau Messegué, Josep M. Miret +1
A digraph is \emph{-geodetic} if for any pair there is at most one -walk of length not exceeding . The order of a -geodetic digraph with minimum ou…
On the nonexistence of almost Moore digraphs with self-repeats
Arnau Messegué, Josep Maria Miret
An almost Moore digraph is a diregular digraph of degree , diameter and order . Their existence has only been shown for . It has also been conje…
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…
Some bounds on the Laplacian eigenvalues of token graphs
Cristina Dalfó, Miquel Àngel Fiol, Arnau Messegué
The -token graph of a graph on vertices is the graph whose vertices are the -subsets of vertices from , two of which being adjacent wheneve…
On the spectra of token graphs of cycles and other graphs
Mónica. A. Reyes, Cristina Dalfó, Miquel Àngel 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…
On large regular (1,1,k)-mixed graphs
C. Dalfó, G. Erskine, G. Exoo +4
An -mixed graph has every vertex with undirected degree , directed in- and out-degree , and diameter . In this paper, we study the case , proposing som…