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Resumen de Fixed points and diametral sets for sequentially bounded mappings in orbital ultrametric spaces

Mohammed Babahmed, Abdelkhalek El Amrani, Samih Lazaiz

  • In this paper, the T -orbital ultrametric spaces are introduced and a fixed point theorem for sequentially bounded mappings is given. Our main result extends some known theorems for nonexpansive mappings. Examples are given to support our work.


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