一个群的Nica- amenable子幺半群,其不能嵌入到可amenable群中
A Nica-amenable submonoid of a group which fails to embed in an amenable group
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中文总结 AI 辅助
构造了一个群的弱拟格序子幺半群,其半群C*-代数是核的,但该幺半群不能嵌入任何可amenable群,从而表明Nica amenable性和核性不刻画可嵌入性。
中文摘要 AI 辅助
我们构造了一个群的弱拟格序子幺半群,其全半群$\mathrm{C}^*$-代数是核的,而该幺半群不能嵌入到任何可amenable群中。因此,Nica amenable性以及其半群C*-代数的核性,并不能刻画群可嵌入幺半群的可嵌入到amenable群的性质。
英文摘要
We construct a weakly quasilattice-ordered submonoid of a group whose full semigroup $\mathrm{C}^*$-algebra is nuclear, while the monoid does not embed into any amenable group. Hence, Nica amenability, as well as the nuclearity of its semigroup C*-algebra, do not characterize embeddability into an amenable group for group-embeddable monoids.
发表机构
- University of Haifa(海法大学)
- New Mexico State University(新墨西哥州立大学)
机构由 AI 辅助整理,请以论文原文为准。