A construction of large graphs of diameter two and given degree from Abelian lifts of dipoles
Kybernetika, Tome 48 (2012) no. 3, pp. 518-521
Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
For any $d\ge 11$ we construct graphs of degree $d$, diameter $2$, and order $\frac{8}{25}d^2+O(d)$, obtained as lifts of dipoles with voltages in cyclic groups. For Cayley Abelian graphs of diameter two a slightly better result of $\frac{9}{25}d^2 + O(d)$ has been known [3] but it applies only to special values of degrees $d$ depending on prime powers.
Classification :
05C12, 05C35
Keywords: the degree-diameter problem; voltage assignment and lift; dipole
Keywords: the degree-diameter problem; voltage assignment and lift; dipole
@article{KYB_2012__48_3_a11,
author = {Mese\v{z}nikov, D\'avid},
title = {A construction of large graphs of diameter two and given degree from {Abelian} lifts of dipoles},
journal = {Kybernetika},
pages = {518--521},
publisher = {mathdoc},
volume = {48},
number = {3},
year = {2012},
mrnumber = {2975804},
language = {en},
url = {http://geodesic.mathdoc.fr/item/KYB_2012__48_3_a11/}
}
Mesežnikov, Dávid. A construction of large graphs of diameter two and given degree from Abelian lifts of dipoles. Kybernetika, Tome 48 (2012) no. 3, pp. 518-521. http://geodesic.mathdoc.fr/item/KYB_2012__48_3_a11/