... Mathematics, Atilim University, 06836, Incek, Ankara, Turkey2Department of Mathematics, University of Las Palmas de Gran Canaria, Campus Universitario de Tafira, 35017 Las Palmas de Gran Canaria, ... as: Karapinar and Sadarangani: Fixed point theory for cyclic (j - ψ)-contra ctions. Fixed Point Theoryand Applications 2011 2011:69.Karapinar and Sadarangani Fixed Point Theory and Applications ... space, m a positive integer, A 1, A 2, , A mnonempty subsets of X,X = ∪mi=1 A iand : [0, ∞) ® [0, ∞) a (c)-comparison function.Karapinar and Sadarangani Fixed Point Theory and Applications...