  In this paper, we investigate the existence of fixed points for
asymptotically nonexpansive mappings with center 0 defined on closed convex
subsets of various Banach spaces. Three applications are given. Firstly, we
prove that our results refine those concerning alternate convexically
nonexpansive (in short; ACN) mappings studied by P. N. Dowling in " On a fixed
point result of Amini-Harandi in strictly convex Banach spaces, Acta. Math.
Hungar., 112 (1-2), (2006), 85-88" . Secondly, by using Lau's result in "
Closed convex invariant subsets of $L_p(G)$, Trans. Amer. Math. Soc., {\bf
232}, (1977), 131-142", we give another characterization for the noncompactness
of locally compact groups $G$. Finally, we discuss the existence of a solution
for a nonlinear transport equation without using compactness results.
