该文证明了这样抽取的代数特征具有一些重要的代数和几何不变性。
This paper proved that this algebraic feature has some important properties of algebraic and geometric invariance.
不变矩多项式和不变矩多项式空间概念的引入，可以赋予不变矩多项式空间代数结构特征。
Also some concepts as moment invariants polynomial and moment invariants polynomial space were discussed so as to characterize its algebra structure.
本交给出了惯量张量用其三个主要不变量表示的特征方程，为求特征值提供了一种代数方程解法；
This paper presents the eigen equation of inertial tensor expressed by the three principal invariants, which is an algebra-equation solution to calculate eigen value;
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