Original Article
Kyungpook Mathematical Journal 2009; 49(4): 701-712
Published online December 23, 2009
Copyright © Kyungpook Mathematical Journal.
Approximation of Common Fixed Points for a Family of Non-Lipschitzian Mappings
Tae Hwa Kim1, Yong Kil Park2
1Division of Mathematical Sciences, Pukyong National University, Busan 608-737, Korea 2Department of Liberal Arts, Hanzhong University, Donghae 240-713, Korea
In this paper, we first introduce a family $mathcal{S}={S_n: C o C}$ of non-Lipschitzian mappings, called {it total asymptotically nonexpansive},(briefly, TAN) on a nonempty closed convex subset $C$ of a real Banach space $X$, and next give necessary and sufficient conditions for strong convergence of the sequence ${x_n}$ defined recursively by the algorithm $x_{n+1}=S_n x_n, ;ngeq 1$, starting from an initial guess $x_1in C$, to a common fixed point for such a continuous TAN family $mathcal{S}$ in Banach spaces. Finally, some applications to a finite family of TAN self mappings are also added.
Keywords: Common fixed points, non-Lipschitzian mappings, total asymptotically nonexpansive mappings, strong convergence