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In this paper we study a (semi)hypergroup ( ,) H D besides a binary relation ≤, where ≤ is a partial preorder or a partial order such that satisfies the monotone condition. This structure is called a partially preordered (ordered) (semi)hypergroup. Also, we consider some well-known hypergroups and define a binary relation on them such that to become partially preordered (ordered) hypergroups. Finally, we associate a semihypergroup to a Γ -semigroup and prove some properties
کلید واژگان :Semihypergroup; Γ -semigroup; Hypergroup; Po-hypergroup; Po-semihypergroup
ارزش ریالی : 600000 ریال
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