發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : On an extension of shapiro's cyclic inequality