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math.CO2023
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…
math.CO2023
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…