finite geometry

In design theory and coding theory , we need finite geometry and Hadamard matrices [ 19,20,24 ] .

在组合设计和编码中，我们需要有限几何和Hadamard矩阵等工具。在组合的各个分支还可以发现更多的例子。

Finite geometry is an important branch in combinatorics mathematics . It provides plentiful sources for graph theory , combinatorics design , coding theory , etc. .

有限几何是组合数学中一个重要的分支，它为图论、组合设计和编码理论等方向提供了丰富的源泉。

It includes the methods of Gallager and Mackay . And some other construction methods based on finite geometry , graph theory and group theory are also depicted .

包括最早由Gallager提出的构造方法、Mackay对其改进的构造方法、基于有限几何、图论及群论上的构造方法等。

Construction of authentication codes with arbitration from finite affine geometry

利用有限仿射几何构作带仲裁的认证码

In this paper , the theories of elastic plastic mechanics and the finite deformation geometry are applied to study the question of surface displacement mechanism and displacement computation by mining below thick alluvia . It has an important guidance for controlling coal mining damage .

本文应用弹塑性力学理论及有限力学变形理论，研究了厚冲积层下开采地表移动的机理与移动量计算问题，对有效地控制地下开采损害具有重大指导作用。

Several Properties of Relation Power R ~ n of Finite Sets and Geometry Meaning

有限集上的二元关系幂的性质及几何意义

In this article , several properties of relation power Rn of finite sets and geometry meaning have been presented .

本文给出了有限集上的二元关系幂的Rn几个性质以及的Rn几何意义。

They are important and have been widely applied in many fields such as function approximation , computational geometry , finite element , algebraic geometry and so on .

它们在函数逼近、计算几何、有限元以及代数几何等领域都占有重要的地位，同时具有广泛的应用。