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

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