Existence theorems in metric spaces and characteriztions of metric completeness
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概要
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In this article, we flrst study existence theorems in completemetric spaces which generalize the Banach contraction principle. Next, weintroduce the concept of w-distances and prove some results in complete metricspaces. Finally we study the relationship between contractive mappings andKannan mappings and then discuss characterizations of metric completeness.
- 城西大学の論文
著者
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Takahashi Wataru
Department Of Cardiology National Hospital Organization Nagano Hospital
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Takahashi Wataru
Department Of Mathematical And Computing Sciences Tokyo Instituteof Technology
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