3 papers
math.CO2024
Bounds in radial Moore graphs of diameter 3
Jesús M. Ceresuela, Nacho López
Radial Moore graphs are approximations of Moore graphs that preserve the distance-preserving spanning tree for its central vertices. One way to classify their resemblance with a Mo…
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…
math.CO2023
On mixed radial Moore graphs of diameter 3
J. M. Ceresuela, Nacho López, Daniel Chemisana
Radial Moore graphs and digraphs are extremal graphs related to the Moore ones where the distance-preserving spanning tree is preserved for some vertices. This leads to classify th…