發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : The fixed point property of a non-unital abelian banach algebra generated by an element with infinite spectrum