A Note on Tight Frames 
LI Deng-feng , ZHAN Yin-wei
Chinese Quarterly Journal of Mathematics . 2002, (4): 48 -51 . 

Copyright © Chinese Quarterly Journal of Mathematics, All Rights Reserved.
Tel: 0371-23881698　E-mail: sxjk@henu.edu.cn　QQ: 2454327236
Powered by Beijing Magtech Co., Ltd.