查询词典 representation theory

In the paper, the concept and characteristics of knowledge maps in geographic knowledge visualization are mainly explored according to the dual coding theory of representation of mental images, features of geospatial thinking, and need for supporting visual exploring of geo-knowledge.

结合"地学图解与图谱"以及目前管理领域的知识可视化领域的新发展[11]，本文建立地理知识可视化概念，并且侧重于地理知识可视化中知识图特征研究，并以黄土高原小流域坝系规划中知识可视化为例进行应用说明。

As a graphical framework for formally describing interactive system, basic graph can represent processes and the interaction between processes in two ways: one is graphical representation, where a graph corresponds to a process and reduction in a graph corresponds to interaction between processes; the other is using term algebra consisting a set of terms and an equational theory on terms.

基本图是一种描述并发交互系统的形式化方法，它具有描述简洁、清晰和直观的特点。在基本图中，进程以及进程间的交互行为，既可以用图表示方法(其中一个图对应一个进程，图之间的归约对应进程之间的交互行为)，又可以用项代数来表示。

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。

Almost every field theory book has something on the representation of Lorentz group.

对我来说必要的知识在那类书中能找到？

The function of spatial relation representation much lies on its mathematic theory or logical foundation.

空间关系描述的能力在很大程度上取决于所依据的数学原理或逻辑基础。

Based on the theory of recursive function ,this method adopts primitive recursive formula in function representation and is easy to be implemented on computer.

机器发现研究的目标是力图在事先不固定函数形式的条件下，发现新函数。

Under the framework of the Vierbein representation of the local Lorentz group gravitational gauge theory, the exact expressions of the energy momentum and the power flow density and total radiation power of the exact cylindrical gravitational waves of Einstein and Rosen are given in this paper.

在Vierbein 表述的局域Lorentz群引力规范理论框架下，给出了Ein－stein－Rosen 严格柱面引力波的能量动量、功率流密度和辐射总功率的严格表达式。讨论了波的各部分之间的互作

The representation and calculation of generalized inverse matrices is an important topic in the theory of generalized inverse. Since its high value in the field of both theotical research and practical use, many scholars have done much research on it.

广义逆矩阵的表示与计算是广义逆理论的重要研究课题，因其理论上的重要地位和实际中的广泛应用一直为人们所关注，近二三十年来，国内外众多学者在这方而做了大量工作，得到了丰富的成果(见[1-6] 等)。

Also, we can present the geometric representation of biological sequences and structures. So the genometric topology and group theory are important also.

同样我们可以用几何方法来表示生物序列和二级结构，几何拓扑和群论也发挥了很大的作用。

Petlyuk presents a clear, multidimensional geometric representation of distillation theory valid for all types of distillation column types, splits, and mixtures.

Petlyuk 提出对蒸馏柱子类型的全部类型有效的蒸馏理论的清楚，多面的几何学表现，劈开，以及混合物。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。