發送短信 : Nonlinear codes from algebraic curves improving the Tsfasman-Vlǎdut-Zink bound

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