【摘要】 给出非奇异M-矩阵的逆矩阵和M-矩阵的Hadamard积的最小特征值下界新的估计式,这些估计式都只依赖于矩阵的元素.数值例子表明,新估计式在一定条件下改进了Fiedler和Markham的猜想,也改进了其它已有的结果.更多还原

【Abstract】 Some new lower bounds of the minimum eigenvalues of the Hadamard product of inverse matrix of nonsingular M-matrix and M-matrix are given.These estimating formulas of the bounds only depend on the entries of matrices.Numerical examples show that the new estimating formulas improve the conjecture of Fiedle and Markham effectively,and also improve the other related results.更多还原