A nonlinear ergodic theorem for asymptotically nonexpansive mappings in Banach spaces
Hirokazu Oka · Proceedings of the Japan Academy Series A Mathematical Sciences · 1989
1. Introduction.Throughout this paper X denotes a uniformly con- vex real Banach space and C is a closed convex subset of X.The value of x* e X* at x e X will be denoted by (x, x*).The duality mapping J (multi- valued) from X into X* will be defined by J(x)--{x*e X*' (x,