M^(-1)N 谱半径的列和估计式

Estimations about the Spectral Radius of M-1 N with Column Sums

利用矩阵的列和对迭代矩阵Ｍ－１Ｎ的谱半径给出的一些估计式，结合胡家赣对Ｍ－１Ｎ谱半径的行和估计式，能对谱半径给出一些更好的估计．

This paper gives some estimations about the spectral radius of matrix M-1 N by column sums. Together with the estimations of the spectral radius of matrix M-1 N by row sums, authors can give more accurate estimations about the spectral radius of M-1 N .