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Author:

杨安洲 (杨安洲.)

Indexed by:

CQVIP

Abstract:

<正> 令X={0,1,…,n-1},n是自然数;若S是集合,则用|S|表示S的基数(S中元素的个数)。 定义1 令x_1,x_2,…,x_n,……是可数无穷多个独立的变元,任一独立变元x_m的取值范围为X;X~m=X×X×…×X(i.e.m个X的笛卡尔乘积);命F(X)={f:f是函数&(m)(f的定义域=X~m)&f的值域?X};若S?F(X)满足(?f∈F(X))(?f_1,…,f_k∈S)(f=f_1f_2…f_k),这里的乘积是指“函数的复合”,则称S是F(X)的一个生成子集;说S是独立的,意指S中任一函数不能由S中其余的某有限个函数经“函数复合”(有限次)而得到。

Keyword:

定义域 有限集合

Author Community:

  • [ 1 ] 北京工业大学应用数学系

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Source :

北京工业大学学报

Year: 1992

Issue: 01

Page: 50

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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