3 papers
math.GR2025
Boundary actions of outer automorphism groups of Thompson-like groups
Chris Bruce, Xin Li, Takuya Takeishi
For every Cuntz--Krieger groupoid, we show that there is a topologically free boundary action of the outer automorphism group of its topological full group on the Hilbert cube. In…
math.RT2024
ICE-closed subcategories and epibricks over one-point extensions
Xin Li, Hanpeng Gao
Let be the one-point extension algebra of by an -module . We proved that every ICE-closed subcategory in can be extended to be some ICE-closed subcategories i…
math.OA2015
On K-theoretic invariants of semigroup C*-algebras attached to number fields, Part II
Xin Li
This paper continues the study of K-theoretic invariants for semigroup C*-algebras attached to ax+b-semigroups over rings of algebraic integers in number fields. We show that from…