%0 Journal Article %T Cyclic contractions via auxiliary functions on G-metric spaces %A Nurcan Bilgili and Erdal KARAPINAR %J Fixed Point Theory and Applications %D 2013 %I %R 10.1186/1687-1812-2013-49 %X In this paper, we prove the existence and uniqueness of fixed points of certain cyclic mappings via auxiliary functions in the context of $G$-metric spaces, which were introduced by Zead and Sims. In particular, we extend, improve and generalize some earlier results in the literature on this topic. %U http://www.fixedpointtheoryandapplications.com/content/2013/1/49/abstract