Presentations for monoids of endomorphisms of a star graph

Citation:
Fernandes, Vítor H., J. Koppitz, and T. Musunthia. "Presentations for monoids of endomorphisms of a star graph." Asian-European Journal of Mathematics (DOI 10.1142/S1793557125500494) (In Press).

Abstract:

In this paper, we consider the monoids of all endomorphisms, of all weak endomorphisms, of all strong endomorphisms and of all strong weak endomorphisms of a star graph with a finite number of vertices. Our main objective is to exhibit a presentation for each of them.

Related External Link

arXiv:

https://arxiv.org/abs/2501.00222