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  _____      ___               _    _     _____   
 / ____||   / _ \\    ____    | || | ||  / ____|| 
/ //---`'  / //\ \\  |    \\  | || | || / //---`' 
\ \\___   |  ___  || | [] ||  | \\_/ || \ \\___   
 \_____|| |_||  |_|| |  __//   \____//   \_____|| 
  `----`  `-`   `-`  |_|`-`     `---`     `----`  
                     `-`

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發送短信 : Common fixed points for asymptotic pointwise nonexpansive mappings in metric and banach spaces