On the basis of the congruence relation of power semigroup,the concept of rough power semigroup is firstly given.Some properties of rough power semigroup are obtained.Finally,homomorphism and isomorphism of rough power semigroup are discussed.
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杨培亮,王少敏.粗糙幂半群[J].重庆工商大学学报(自然科学版),2011,28(6):577-579 YANG Pei-liang, WANG Shao-min. Rough Power Semigroup[J]. Journal of Chongqing Technology and Business University(Natural Science Edition),2011,28(6):577-579