Article
Keywords:
lipchitzian mapping; uniformly lipschitzian mapping; $n$-periodic mapping; fixed point
Summary:
Using modified Halpern iterations, by elementary method, we extend and improve results obtained by W.A. Kirk (Proc. Amer. Math. Soc. {\bf 29} (1971), 294) and others, which have recently been presented in Chapter 11 of {\it Handbook of Metric Fixed Point Theory\/} (2001).
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