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Convergence of the Ishikawa Iteration Process for Nonexpansive Mappings in Hyperspace

超空間上非擴張函數的石川氏迭代收歛定理

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摘要


設X為賦距線性空間,KC(X)為X上所有非空緊緻的凸子集所成的集合,而א為KC(X).的子集,且T:א→KC(X)為非擴張映射。設{Xn}為א上的序列且{tn}為實序列,滿足下列: (i)運算式略 (ii)運算式略 若{Xn}為有異,則limh(TXn,Xn)=0. 上述定理推廣了石川氏的結果。

並列摘要


Let X be a metric linear space, KC(X) is the collection of all nonempty, compact, convex subsets of X and א be a subset of KC(X). Suppose that T:א→KC(X) be a noncxpansive mapping. Given a sequence [Xn] in א and a recl scquences {tn} satisfying (i) 運算式略 (ii)運算式略 If {Xn} is bounded then lim h(THn, Xn)=0. The theorem generalize the result obtained by Ishikawa.

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