110 citations · 362 across the 50 of their papers we have counts for
52 papers
On the denseness of distal points
Su Gao, Hanfeng Li, Ruiwen Li
We give an answer to a question of Xu and Ye (Disjointness with all minimal systems under group actions, to appear in Israel J. Math., arxiv:2212.07830) on the denseness of distal…
Entropy, virtual Abelianness, and Shannon orbit equivalence
David Kerr, Hanfeng Li
We prove that if two free p.m.p. -actions are Shannon orbit equivalent then they have the same entropy. The argument also applies more generally to yield the same concl…
Malcolmson semigroups
Tsz Fun Hung, Hanfeng Li
Inspired by the construction of the Cuntz semigroup for a C*-algebra, we introduce the matrix Malcolmson semigroup and the finitely presented module Malcolmson semigroup for a unit…
Bernoullicity of lopsided principal algebraic actions
Hanfeng Li, Kairan Liu
We show that the principal algebraic actions of countably infinite groups associated to lopsided elements in the integral group ring satisfying some orderability condition are Bern…
Expansive actions with specification of sofic groups, strong topological Markov property, and surjunctivity
Tullio Ceccherini-Silberstein, Michel Coornaert, Hanfeng Li
A dynamical system is a pair , where is a compact metrizable space and is a countable group acting by homeomorphisms of . An endomorphism of is a continuo…
Sylvester rank functions for amenable normal extensions
Baojie Jiang, Hanfeng Li
We introduce a notion of amenable normal extension S of a unital ring R with a finite approximation system F, encompassing the amenable algebras over a field of Gromov and Elek, th…