摘要
我们研究了某些基与拟基的关系,证明了空间具有有限秩的基当且仅当它有有限秩的拟基,空间具有正交基当且仅当它有正交的拟基.
We investigate the relations between certain bases and quasi-bases, prove that a space has finite rank base if and only if it has finite rank quasi-base, a space has an ortho-base if and only if it has an ortho-quasi-base.
出处
《数学进展》
CSCD
北大核心
2007年第1期23-28,共6页
Advances in Mathematics(China)
基金
This work is supported by the NSFC(No.10271026)
the SDPSF(No.Y2004A03).
关键词
基
拟基
对基
秩
单调正规
base
quasi-base
pair-base
rank
monotonically normal