發送短信 : On the Symbol-Pair Distance of Repeated-Root Constacyclic Codes of Prime Power Lengths*

  _  __    _____    _____       ___      ______  
 | |/ //  |  ___|| |  __ \\    / _ \\   /_   _// 
 | ' //   | ||__   | |  \ ||  / //\ \\  `-| |,-  
 | . \\   | ||__   | |__/ || |  ___  ||   | ||   
 |_|\_\\  |_____|| |_____//  |_||  |_||   |_||   
 `-` --`  `-----`   -----`   `-`   `-`    `-`'