@article {16594,
	title = {On monoids of endomorphisms of a cycle graph},
	journal = {Mathematica Slovaca},
	year = {In Press},
	abstract = {<p>In this paper we consider endomorphisms of an undirected cycle graph from Semigroup Theory perspective. Our main aim is to present a process to determine sets of generators with minimal cardinality for the monoids $wEnd(C_n)$ and $End(C_n)$ of all weak endomorphisms and all endomorphisms of an undirected cycle graph $C_n$ with $n$ vertices. We also describe Green{\textquoteright}s relations and regularity of these monoids and calculate their cardinalities.</p>
},
	author = {Dimitrova, I. and Fernandes, V{\'\i}tor H. and Koppitz, J. and T.M. Quinteiro}
}
