發送短信 : Globally exponential stability of a certain neutral differential equation with time-varying delays

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