查询词典 singular bivariate normal distribution

In particular,we give the construction of a class of compactly supported nonseparable bivariate orthgonal scaling functions.

在第4章中，我们用提升方法对这些CDF型双正交小波之间的构造关系进行了研究。

Additionally, this research used One-Pass Method for first time to estimate jointly the conditional mean equation and conditional variance equation of Bivariate GARCH Model to avoid estimating error in previous relative studies with Two-Pass Method.

此外，本文在进行模型估计时，首度采用一阶段估计法，来联合估计双变量GARCH模型中的条件平均数方程式与条件变异数方程式，以避免过去相关文献将两条方程式个别估计时所造成的估计误差。

The principles and characteristics of the DD-DT CWT are analyzed and a Bivariate Shrinkage Function is derivated.

分析了双密度双树复小波变换的原理及特点，推导了双变量收缩函数。

An explicit mathematical representation of the exact boundary of a ball Bézier surface was given by recurring to the envelope theory of the family of bivariate surfaces in the classic differential geometry, as well as the spherical coordinates and the Cramer's rule.

根据经典微分几何中双参数曲面族的包络原理，运用球面参数坐标和Cramer法则，给出了球域Bézier曲面边界的精确数学显式表达式。

Through comparison analysis on the development of service industry, and empirical and comparative analysis on development of different businesses in service industry, the author made research on the "intangibility - standardization" bivariate spectrum. And then the author studied the innovative pattern of standardization and customization service.

借鉴和吸收前人关于服务产品概念、特征、分类和服务创新理论等研究成果，通过对服务创新模式的比较分析和服务业各行业的比较分析，提出了服务业"无形性一标准化"行业二维分布图，并在此基础上提出了标准化服务创新模式和定制化服务创新模式。

By using the techniques of an explicit criterion to determine the number of real roots of a univariate polynomial in ( [13] , [73] ); B-net form of bivariate splines function; discriminant sequence of polynomial (cf. [13] , [73] ) and the number of sign changes in the sequence of coefficients of the highest degree terms of sturm sequence, this paper determines the number of real intersection points two piecewise algebraic curves whose common points are finite.

3：利用杨路，张景中，侯晓荣在文献（[13]，[73]）中关于一元多项式实根的显式判准，以及二元样条函数的B-网形式，多项式的判别序列和Sturm序列的最高次数项系数序列的变号数，本文给出了两个分片代数曲线的实交点数的计算公式。

The t test and H test were applied in the intergroup and intragroup comparisons respectively, the relation between the indexes was analyzed with bivariate correlation analysis.

组间比较行t检验，组内比较行H检验，各指标间的相关性采用双变量相关分析。

There is background material on study design, bivariate regression, and matrix algebra.

有背景材料的研究设计，二元回归，和矩阵代数。

In this paper,we discussed the existence,uniqueness,and approximation order of interpolation by bivariate quartic splines with B-Net in three direction meshes .

文[1]、[2]曾讨论了用S41（△mn（1））、S41（△mn（2））作为插值空间的插值问题，[3]讨论了三向剖分域上S31空间的B样条对偶基与拟插值。

We also extend univariate osculatory rational Hermite-like interpolation to bivariate case.

在论文中我们还由一元类Hermite切触有理插值得到了二元的情况。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。