给出了一些用矩阵的迹表示的特征值的上、下界。
Gives some upper bounds and lower bounds for eigenvalues using trace of matrix.
文章讨论了几类特殊矩阵的迹，给出了它们的一般结果，并举例说明它们在证明相关问题中的应。
In this paper, the author discuss several special matrix traces, gives their general results, and illustrates their application in proving correlative questions.
讨论线性函数与矩阵的迹的关系，给出了一个线性函数是矩阵的迹的若干充要条件。
This paper studies relation between the linear function and the matrix trace, and obtains a number of necessary and sufficient the condition that a linear function is trace of matrix.
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