Distribution of Organic Carbon Storages in Purple Paddy Field Basined on Region Scale complex vector space 区域稻田土壤碳储量的空间分布特征复矢量空间;复数域上的向量空间;复向量空间
Let B be a complex vector space generated by some simple closed curves in the annulus. 设B是一个复的向量空间,它是由环链在平环上的简单闭曲线生成。
The real mode method is based on the fact that a complex vector in n-dimensional complex vector space can be represented on the basis of a set of linearly independent real vectors in n-dimensional real vector space. 实模态叠加法是基于一个事实,即n维复向量空间中的复向量可以在n维实向量空间中的一组线性无关的实向量构成的基下表出;
In this paper, some properties of totally real and totally umbilical submanifolds of a complex projective space are obtained. We also prove that a compact totally real submanifold with positive curvature and parallel mean curvature vector of a complex projective space must be pseudo-umbilical. 获得了复射影空间中全实全脐子流形的若干性质,并且证明了复射影空间中具有平行平均曲率向量的正曲率紧致全实子流形必是伪脐的。
A complex two dimensional vector bundle is constructed, which structure group is SL ( 2, c), base manifold is spacetime M and M is u space. 考虑时空M为u4空间,建立以M为底流形、SL(2,c)为结构群的二维复矢量丛,丛上联络作为规范势。
On the foundation of this, utilizing the complex trait of space voltage vector, aiming at the different representation of space voltage vector, we give the different SVPWM arithmetic steps. 在此基础上,利用空间电压矢量合成特性,给出了针对空间电压矢量不同的表示方法对应的不同的SVPWM算法步骤。
The paper showed a parameter representation of isotropic vector in complex vector space, and obtained the some properties. 给出了复向量空间中的迷向向量的一种参数表示,并由此获得了迷向向量的一些性质。
Then, combines the two kinds of resulting features together by a complex vector, and employes the principal component analysis for feature extraction in the complex feature space. 然后利用复向量将同一样本的两组特征向量合并在一起,通过运用复主分量分析,来抽取人脸图像的有效鉴别特征。
Decision problem is regarded as a complex system. On the basis of analyzing interior structure and characteristic of decision problem, an object-oriented problem vector space model is proposed to act as description method of decision problem system. 将决策问题看成一种复杂的系统,在分析决策问题系统的内部结构及特征的基础上,提出一种面向对象的问题向量空间模型,用以作为决策问题系统的描述方法。