摘要
Extremes of quadratic forms have been discussed in [l] and [3]. Some related topics can be found in [2]. Some extremes of determinants and optimal properties of canonical variables were obtained in [l]. Here discussed are some extensions to [1].
二次型极值已被一些文献诸如[1]和[3]讨论,一些相近的题目可在文献[2]中见到.文献[1]得到与二次型有关的行列式极值和典则变量的最优性质,本文对[1]给出补注.
