Text this

Number:

Provider:

CAPTCHA:

  ______    ______   _____       ___    __    __  
 /_   _//  /_   _// |  __ \\    / _ \\  \ \\ / // 
   | ||     -| ||-  | |  \ ||  | / \ ||  \ \/ //  
  _| ||     _| ||_  | |__/ ||  | \_/ ||   \  //   
 /__//     /_____// |_____//    \___//     \//    
 `--`      `-----`   -----`     `---`       `

Please enter what you see:

Text this: Sharp conditions for weighted 1-dimensional Poincaré inequalities