Chun Guang Li

collaborators

2 papers

math.OA2026

Strict comparison holds in the uniform Roe algebra of a discrete amenable group

George A. Elliott, Chun Guang Li, Zhuang Niu +1

Let $I^$ be a countable discrete amenable group, and let $A = l^{\infty} (I^) ⋊ I^$ . It is shown that if $a, b \in A \otimes K$ are positive elements such that $$\mathrm{…

math.OA2026

Villadsen algebras are singly generated

Chun Guang Li, Zhuang Niu, Vincent M. Ruzicka

We show that Villadsen algebras, which are not Z-stable, are singly generated. More generally, we show that any simple unital AH algebra with diagonal maps is singly generated.