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math.CO2025
On divisibility relation graphs
Jonathan L. Merzel, Ján Mináč, Tung T. Nguyen +1
For each positive integer , we define the divisibility relation graph whose vertex set is the set of divisors of , and in which two vertices are adjacent if one is a di…
math.CO2024
A complete classification of perfect unitary Cayley graphs
Ján Mináč, Tung T. Nguyen, Nguyen Duy Tân
Due to their elegant and simple nature, unitary Cayley graphs have been an active research topic in the literature. These graphs are naturally connected to several branches of math…