Rosenfeld’s fuzzy bi-hyperideals in fuzzy semihypergroups based on universal sets

الملخص EN

We introduce the concept of fuzzy bi-hyperideal in fuzzy semihypergroup through the approach of fuzzy hypergroup introduced by Davvaz (2010).

It is a generalisation of the concept of fuzzy bi-ideal in fuzzy semigroup of Dib.

A relationship between fuzzy ideals and fuzzy bi-hyperideals dy Davvaz is obtained, which are through the approach of Rosenfeld.