Luteolin is a naturally occurring secondary metabolite belonging to the class of flavones. As many other natural flavonoids, it is often found in combination with glycosides in many fruits, vegetables, and plants, contributing ...

In this study, we define new semigroup structures using the set S-S = {a is an element of S vertical bar aSa = 0} which is called the source of semiprimeness for a semigroup S with zero element. vertical bar S-S vertical ...