發送短信 : Endpoints of multi-valued weakly contraction in complete metric spaces endowed with graphs

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