Cuntz半群的覆盖维数
算子代数
2021-08-13 v2
摘要
我们引入了C*-代数的Cuntz半群的覆盖维数概念。该维数总是由C*-代数的核维数所界定,而对于次齐次C*-代数,两种维数相等。Z-稳定C*-代数的Cuntz半群维数至多为⼀。此外,简单Z-稳定C*-代数的Cuntz半群是零维的,当且仅当该C*-代数具有实秩零或是稳定无投影的。
引用
@article{arxiv.2101.04522,
title = {Covering dimension of Cuntz semigroups},
author = {Hannes Thiel and Eduard Vilalta},
journal= {arXiv preprint arXiv:2101.04522},
year = {2021}
}
备注
32 pages; extended introduction, added details on inductive limits and elements with thin boundary, rearranged order of results in Section 4; to appear in Adv. Math