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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