【摘要】 Schur定理规定了半正定矩阵的 Hadamard乘积的所有特征值的整体界限 . EricIksoon Im在同样的条件下确定了每个特征值的特殊的界限 .本文给出了 Hermitian矩阵的Hadamard乘积的每个特征值的估计 ,改进和推广了 I.Schur和 Eric Iksoon Im的相应结果更多还原

【Abstract】 The Schur theorem defined the global bounds for all eigenvalues of Hadamard product of positive semidefinite matrices. In the same content Eric Iksoon Im established specific bounds for every eigenvalue. This paper gives the estimation of every eigenvalue of Hadamard product of two Hermitian matrices, improves and expands I.Schur and Eric Iksoon Im’s corresponding results.更多还原