矩阵迹 meaning in English

trace of matrix

Some necessary and sufficient conditions concerning a matrix trace inequality
关于矩阵迹不等式的几个充要条件
Abstract : two necessary and sufficient conditions are concerning a matrix trace inequality obtained . they are extended to complex cases
文摘:主要得到了关于实矩阵迹不等式的两个充要条件,并把所得结果推广到复矩阵情形
As a result , we are not only unable to obtain the optimal prediction in general cases but incapable of finding the necessary and sufficient conditions as well . considering linear and o - linear predictable variables , the author investigates optimal prediction problems by the trace of matrix . a few necessary conditions are derived and accordingly optimal linear and optimal o - linear unbiased predictors , which are unique with probabitity one , are obtained respectively by the author
对于一类线性可预测变量和-线性可预测变量，作者在矩阵迹意义下研究了一般增长曲线模型中最优预测问题，找到了其存在最优预测的几个必要条件，并在给定的条件下分别得到了最优线性无偏预测和最优-线性无偏预测，而且还证明了它们在几乎处处意义下的唯一性