摘要
设A为一个含单位元的C~*-代数,且有拟对角扩张0→I→A→πA/I→0.则A具有α-比较性,当且仅当I与A/I都具有α-比较性.
For any unital C＊-algebra A with a quasidiagonal extension the paper is to show that ,A has the α-comparison property if and only if both I and A/I have the a-comparison property.
出处
《数学进展》
CSCD
北大核心
2017年第4期548-556,共9页
Advances in Mathematics（China）
基金
supported by NSFC(No.11371279)
Shanxi Scholarship Council of China
关键词
Cuntz半群
α-比较性
拟对角扩张
Cuntz semigroups
α-comparison property
quasidiagonal extensions
