Annihilator Digraphs and Extended Zero-Divisor Digraphs of Semigroups and Rings

Rasie Mekera, Defne Somer, Didem Yeşil

Let $S$ be a semigroup with zero. This paper studies the zero-divisor digraph $\overrightarrow{\Gamma }(S)$ and the extended zero-divisor digraph ${\overrightarrow{\Gamma }}_E$, and introduces t…