Extremal ranks for block Hermitian and skew-Hermitian matrices
ZHANG Feng-xia1, LI Ying1,2, GUO Wen-bin1, ZHAO Jian-li1
1. College of Mathematics Science, Liaocheng University, Liaocheng 252059, Shandong, China;
2. School of Management, University of Shanghai for Science and Technology, Shanghai 200093, China