1) perfect system of difference sets
完美差集合系统
1.
It has close relationship with perfect system of difference sets,which have been applied in the significant fields of radioastronomy, graph theory,experimental design,digital communication and computer coding,etc.
完美差族是组合设计理论中一个重要的概念,是具有某种特殊性质的一类差族,它可用于构造循环Steiner 2-设计C(v,k,1);此外,完美差族与完美差集合系统具有紧密的联系,它们在射电天文学、图论、实验设计、数字通讯以及计算机编码等重要领域都有广泛的应用。
2) perfect set
完美集合
1.
On 2-perfect sets and the corresponding perfect numbers from 3 to 18
关于3-18的2-完美集合与对应的完美数
3) secondary perfect set
次完美集合
4) perfect difference family
完美差族
1.
In Chapter 1,we introduce some basic definitions and some known conclusions of perfect difference family,directed perfect difference family,perfect system of difference sets,additive sequence of permutations,(m,k,c)-system and its split,etc.
完美差族是组合设计理论中一个重要的概念,是具有某种特殊性质的一类差族,它可用于构造循环Steiner 2-设计C(v,k,1);此外,完美差族与完美差集合系统具有紧密的联系,它们在射电天文学、图论、实验设计、数字通讯以及计算机编码等重要领域都有广泛的应用。
5) perfect matching
完美对集
1.
On the theoretical basis of the necessary and sufficient conditions for the perfect matching derived by Tutte,a sufficient condition is further derived as follows in this paper,when the number of vertex in simple graph G is even number,and the minimum degree number of vertex is δ≥υ/2-1 in simple graph G.
在Tutte关于完美对集存在的充要条件基础上,针对具有偶数个(υ个)顶点,且顶点的最小度数δ≥υ/2-1的简单图G,通过构造的连接方法,论证了图G中有完美对集的充分条件。
6) Perect addition sets
完美加集
补充资料：对集
数与数之间的冲突或弥合构成的新数群。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条