activity
20242026
collaborators

7 papers

math.DS2026

A Hard-Core Subshift Whose Sofic Mean Dimension Depends on the Sofic Approximation

Xianqiang Li, Zhuowei Liu

We exhibit a topologically mixing continuous-alphabet subshift of the free group whose sofic mean dimension depends on the chosen homomorphic sofic approximation, which gives…

math.DS2026

Equivalence of Sofic -Metric Mean Dimensions and a Tame-Metric Variational Formula

Xianqiang Li, Zhuowei Liu

Let be a countable discrete sofic group acting by homeomorphisms on a compact metrizable space and a sofic approximation of . We prove that for every $1\leq p<\in…

math.DS2025

Relative entropy, topological pressure and variational principle for locally compact sofic group actions

Xianqiang Li, Zhuowei Liu

For a locally compact sofic group continuously acting on a compact metric space, we first study the relative sofic entropy and prove an additive inequality relating sofic entropy a…

math.CA2025

Equivalence between sofic metric mean dimension and sofic -metric mean dimension with a product formula

Xianqiang Li

In this paper, we prove the equivalence between sofic -metric mean dimension and sofic metric mean dimension. This answers a question of Hayes in \cite{HB }. Furthermore, we est…

math.DS2025

Sofic conditional mean dimension, relative sofic mean dimension and their localizations

Xianqiang Li, Zhuowei Liu, Xiaofang Luo

Let be a factor map between continuous actions of a sofic group , we study sofic conditional mean dimension and relative sofic mean dimension introduced in…

math.DS2024

Mean Hausdorff Dimension of Some Infinite Dimensional Fractals for Amenable Group Actions

Xianqiang Li, Xiaofang Luo

For the countable discrete amenable group actions, we calculate the mean Hausdorff dimensions of three types of infinite dimensional fractal systems, the self-similar systems, homo…