该文还阐明了对二阶对称张量成立的关于特征方程的重根与重向的一些结论对非对称二阶张量不一定成立。

The paper illustrates the conclusions about the multiple root of characteristic equation and characteristic vector which fit symmetric tensor of rank two may unfit unsymmetric tensor.

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分别应用根树、B -级数理论、P -根树、P -级数理论推导方法的阶条件。

We use theory of trees, B-series, P-trees and P-series to deduce the order conditions of the methods constructed.

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单位根检验结果显示创业投资时间序列和专利时间序列都是非平稳的，是一阶单整序列；

The result of the unit root test shows that the venture capital time series and the patent time series are both non-reposeful time series, they are integrated of order 1;

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