發送短信

數:

提供者:

CAPTCHA:

  ______    _____      _____     ___      ______  
 /_   _//  |  ___||   / ___//   / _ \\   /_   _// 
   | ||    | ||__     \___ \\  | / \ ||  `-| |,-  
  _| ||    | ||__     /    //  | \_/ ||    | ||   
 /__//     |_____||  /____//    \___//     |_||   
 `--`      `-----`  `-----`     `---`      `-`'

Please enter what you see:

發送短信 : A monotonicity property for random walk in a partially random environment