1448 10 archive 33 disk0/00/00/14/48 2007-12-17 04:59:32 2008-08-16 07:09:09 2007-12-17 04:59:32 article show Davvaz, B. davvaz@yazduni.ac.ir Yazd University, Dept. of Mathematics pub Q none Semihypergroups, hyperideal, intuitionistic fuzzy set, intuitionistic fuzzy hyperideal. The notion of intuitionistic fuzzy sets was introduced by Atanassov as a generalization of the notion of fuzzy sets. In this paper, using Atanassov idea, we establish the intuitionistic fuzzification of the concept of hyperideals in a semihypergroup and investigate some of their properties. 2000 Mathematics Subject Classification: 20N20 2006 published Bulletin of the Malaysian Mathematical Sciences Society 29 2 Penerbit Universiti Sains Malaysia 203-207 TRUE 0126-6705 http://math.usm.my/bulletin/pdf/v29n2/v29n2p11.pdf http://math.usm.my/bulletin/html/vol29_2_11.htm [1] K. Atanassov, Intuitionistic fuzzy sets, Fuzzy Sets and Systems, 20 (1986), 87-96. [2] K. Atanassov, New operations defined over the intuitionistic fuzzy sets, Fuzzy Sets end Systems, 61 (1994), 137-142. [3] K. Atanassov, Intuitionistic Fuzzy Sets, Theory and Applications, Studies in Fuzziness and Soft Computing, Vol. 35, Physica-Verlag, Heidelberg, 1999. [4] P. Corsini and V. Leoreanu, Applications of Hyperstructures Theory, Advanced in Mathematics, Kluwer Academic Publisher, 2003. [5] B. Davvaz, Fuzzy hyperideals in semihypergroups, Italian J. Pure Appl. Math. 8 (2000), 67-74.