Text this: Common fixed points for single-valued and multi-valued mappings in G-metric spaces

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