أرسل هذا في رسالة قصيرة: ON THE ORBIT CLOSURES OF NILPOTENT MATRICES

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