摘要
本文给出非正符号矩阵A2 中负元个数的下界, 并刻划达到下界的极矩阵。
This paper gives the lower bound of the number of negative entries of nonpositive sign pattern matrix A\+2 and characterizes the matrix which attains the bound \ \
出处
《广西工学院学报》
CAS
1999年第4期8-13,共6页
Journal of Guangxi University of Technology