It is the purely symmetricproduct; therefore, it is completely commutative.
它是纯对称的积;因此,它是完全可交换的。
2
In this paper, the author gives a kind of expression of symplectic matrices by using the result that any matrix on a field is a product of two symmetric matrices.
通过运用在域上任何矩阵都是两个对称矩阵乘积的结论,给出了一种辛矩阵的表示方法。
3
Grain refinement during asymmetric rolling was studied. The result showed that the grains of asymmetric rolled product are finer than that of symmetric rolled product in the same reduction.