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

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