%0 Journal Article %A Xin-Lei Feng and Ting-Zhu Huang %D 2011 %J International Journal of Mathematical and Computational Sciences %B World Academy of Science, Engineering and Technology %I Open Science Index 56, 2011 %T Some Results of Sign patterns Allowing Simultaneous Unitary Diagonalizability %U https://publications.waset.org/pdf/4177 %V 56 %X Allowing diagonalizability of sign pattern is still an open problem. In this paper, we make a carefully discussion about allowing unitary diagonalizability of two sign pattern. Some sufficient and necessary conditions of allowing unitary diagonalizability are also obtained. %P 1252 - 1254