أرسل هذا في رسالة قصيرة: On R-unipotent semigroups with ΠL<sup>1</sup>-embeddable band of idempotents

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