發送短信 : Strong convergence of modified Halpern iterations in CAT(0) spaces

 _    _    _    _    ______      ___     ______   
| |  | || | || | || |      \\   / _ \\  |      \\ 
| |/\| || | || | || |  --  //  | / \ || |  --  // 
|  /\  || | \\_/ || |  --  \\  | \_/ || |  --  \\ 
|_// \_||  \____//  |______//   \___//  |______// 
`-`   `-`   `---`   `------`    `---`   `------`