%0 Journal Article %T Multipolar fuzzy hyper BCK-ideals of hyper BCK-algebras %J Journal of Algebraic Hyperstructures and Logical Algebras %I University of Hatef (Hatef College University) %Z 2676-6000 %A Jun, Y.B. %D 2020 %\ 02/01/2020 %V 1 %N 1 %P 37-47 %! Multipolar fuzzy hyper BCK-ideals of hyper BCK-algebras %K Hyper BCK-algebra %K k-polar fuzzy (weak %K s-weak %K strong %K reflexive) hyper BCK-ideal %R 10.29252/hatef.jahla.1.1.3 %X In this paper, we apply m-polar fuzzy set to hyper BCKalgebra. We introduce the notions of k-polar fuzzy hyper BCK-ideal, k-polar fuzzy weak hyper BCK-ideal, k-polar fuzzy s-weak hyper BCK-ideal, k-polar fuzzy strong hyper BCK-ideal and k-polar fuzzy reflexive hyper BCKideal, and investigate related properties and their relations. We discuss k-polar fuzzy (weak, s-weak, strong, reflexive) hyper BCK-ideal in relation to k-polar level set %U https://jahla.hatef.ac.ir/article_101793_e6dba1b94b3bc568e44eb7d9fd57fe7d.pdf