Further theoretical analysis indicates that there is a conversation law only when unitary transformation symmetry group exist.
进一步的理论分析表明，只有存在一个幺正变换对称群时，才有一个守恒定律。
2
Perturbation analysis of the canonical subspaces: This paper gives the least perturbation bound of the unitary factor on the unitary decomposition.
标准子空间的扰动分析：本文给出了矩阵的酉分解中酉因子的最小扰动界。
3
The analysis requirement that the traditional virtual spectrum analyzer which has unitary function and expensive price and has not flexible use can not already satisfy modern test signal.