差集

一种基于松弛循环差集的对称分布式互斥算法

A Symmetric Distributed Mutual Exclusion Algorithm Based on Relaxed Cyclic Difference Set

给出循环对称设计和循环差集等价证明的新方法，同时对一些组合设计文献中的某些问题进行了探讨。

In this paper , a new method of equivalence of the circular symmetry design and circular difference set is proposed , and some possible mistakes in the combinatorial design document are discussed .

本文研究Z+的子集族F生成的无限差集类（？）

Let F be a family for Z + , F generate a collection of infinite difference sets (?)

Banach空间中有界变差集值函数的性质

Properties of Set-Valued Function with Bounded Variation in Banach Space

与Abel差集有关的一个丢番图方程的解

The Solutions of the Diophantine Equation about Abel-Difference Sets

非交换Hadamard差集存在的一个必要条件

A necessary condition for non-Abelian Hadamard difference sets

介绍了严格最佳和准最佳（，νk，1）光正交码的定义，阐述了它们与（，νk，1）循环差集族的关系。

The definitions of strict-optimal and quasi-optimal (ν, k , 1 ) optical orthogonal codes are introduced . The relationship between optimal optical orthogonal code and cyclic difference family is given .

第三部分利用模pq（p，q为互异素数）分圆类构造了两类新的几乎差集；

In the third section , we construct two new families of almost difference sets by using cyclotomy modulo pq , where p and q are distinct primes ;

本文把文[1]的想法推广到非交换的情形，得到非交换Hadamard差集存在的一个必要条件。

The present paper generalizes the idea used in [ 1 ] to non-Abelian case and obtains a necessary condition for non-Abelian Hadamard difference sets .

关于Whiteman差集

On the Whiteman difference sets

·把正交表的广义Hadamard积和用差集矩阵构造混合水平正交表的方法联合起来应用到投影矩阵的正交分解中，使得所构造的正交表具有更多的列。

Moreover , the generalized Hadamard product of two columns of an orthogonal array is extended to that of two orthogonal arrays , which makes the constructed arrays have more non-prime power level columns .

由平方剩余差集与差集偶构造二元ZCZ序列偶集余差可以与辐射输入数相关。

Binary Sequence Pair Sets with Zero Correlation Zone from Quadratic Difference Set and Difference Set Pair The residues may be correlated with the radiational input .

同时，对于多通道图像，本文先利用基于Mumford-Shah模型的向量图像分割方法，对人造的两个通道的图像，成功的得到了两个图像的差集和并集图像。

For the multichannel image , we use the vector-valued image segmentation model based on Mumford-Shah model to deal with the artifical two-channel image , and get the reunion and set difference image of the two channels .

如果矩阵的不同元素只有两个，则可以构造任意阶的多电平Hadamard矩阵，基于循环矩阵或者循环差集，我们分别构造了三值的m~2和4n阶多电平Hadamard矩阵。

Multilevel Hadamard matrices with arbitrary order can be constructed if such matrices having only two different elements in their entries . Based on the circulant matrices or cyclic difference sets , multilevel Hadamard matrices having three different elements of order m ~ 2 or An are constructed , respectively .

基于水平差集的多精度图像表示及绘制

Level Difference Set Based Coarse to Fine Image Representation and Rendering

拟差集关联矩阵的应用

Application of the incidence matrix of cyclic near difference sets

广义相对差集二元序列的最佳性

Optimality of Binary Sequences of Generalized Relative Difference Set

广义相对差集偶的若干性质

A few properties of generalized relative difference set pairs

1型拟差集的存在性

The Existence of Near Difference Sets of Type 1

一类关于两个子群的相对差集

A type of relative difference sets about two subgroups

抽屉原则与自由差集

Practical application of the drawer principle free difference set

基于差集的综合孔径圆环天线阵稀疏优化方法

Difference Set Based Methods for Optimal Thinned Circular Arrays in Aperture Synthesis Radiometers

本文介绍了一个循环差集的存在性定理。

A new existence theorem on cyclic difference sets is introduced in this note .

研究了差集偶的性质，给出了差集偶与最佳二进阵列偶之间的关系。

The relationship between differences set pairs and perfect binary array pairs is given .

关于循环差集的一个存在性定理

An existence theorem on cyclic difference , sets

基于完备循环差集低密度奇偶校验码的构造

Construction of Low-density Parity-check ( LDPC ) Codes Based on Prefect Cyclic Difference Sets

一族新的可分差集

A New Family of Divisible Difference Sets

关于循环相对差集的一些结果

Some Results on Cyclic Relative Difference Sets

首先得到相对差集存在的一些必要条件。

First the article obtain some necessary conditions for the existence of relative difference sets .

完美二进序列偶是完美二进序列的推广，其对应的组合结构称为差集偶。

The uniqueness of almost perfect punctured binary sequence pair is put forward and proved .