... O’Regan, D, Sahu, DR: Iterative construction of fixed points of nearly asymptotically nonexpansive mappings. J Nonlinear Convex Anal. 8,61–79 (2007)22. Khan, SH, Abbas, M: Strong and Δ -convergence ... limnxn=x and call x the Δ-limit of {xn}.In 200 8, Kirk and Panyanak [6] gave the following result for nonexpansive mappings on CAT(0) spaces.Theorem 2.1.[6]LetC beanonemptyclosedconvexsubsetofacompleteCAT(0)space ... and Applications 2011, 2011:49http://www.fixedpointtheoryandapplications.com/content/2011/1/49Page 2 of 156. Kirk, WA, Panyanak, B: A concept of convergence in geodesic spaces. Nonlinear Anal....