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  ______     ___     __   _      ___     _    _   
 /_   _//   / _ \\  | || | ||   / _ \\  | || | || 
   | ||    / //\ \\ | '--' ||  | / \ || | || | || 
  _| ||   |  ___  ||| .--. ||  | \_/ || | \\_/ || 
 /__//    |_||  |_|||_|| |_||   \___//   \____//  
 `--`     `-`   `-` `-`  `-`    `---`     `---`

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發送短信 : Best proximity points of α-β-ψ-proximal contractive mappings in complete metric spaces endowed with graphs