【摘要】 <正>1 引言 [1]中,讨论了C^m×n上的矩阵A的L_p范数/A/_p=(∑/a_ij/^p)和l_p算子范数‖A‖_p= max/AX/_p1』之间的关系,得到了下面的不等式: ‖A‖_p≤μ_p（n）/A/_p, ‖A‖_p≤μ_q（m）/A/_p, （1.1） 这里更多还原

【Abstract】 In this paper, our main results is to extend some inequalities in [l].[2] and [3], and obtain the upper limit and lower limit that we easy to calculate and are optimal under some conditions. In addition, we give the sufficient and necessaly conditions for the equivelent between two operator norm.更多还原