Su Gao

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20222026

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math.CO2025

Borel Combinatorics of Schreier Graphs of $Z$ -actions

Su Gao, Yingying Jiang, Tianhao Wang

In this paper we consider the Borel combinatorics of Schreier graphs of $Z$ -actions with arbitrary finite generating sets. We focus mostly on the problem of computing the…

math.CO2024

Continuous Edge Chromatic Numbers of Abelian Group Actions

Su Gao, Ruijun Wang, Tianhao Wang

We prove that for any generating set $S$ of $Z^{n}$ , the continuous edge chromatic number of the Schreier graph of the Bernoulli shift action $G = F (S, 2^{Z^{n}})$ is $…

math.CO2022

Self-Similar Structure of $k$ - and Biperiodic Fibonacci Words

Darby Bortz, Nicholas Cummings, Suyi Gao +4

Defining the biperiodic Fibonacci words as a class of words over the alphabet ${0, 1}$ , and two specializations the $k -$ Fibonacci and classical Fibonacci words, we provide a self-…

Borel Combinatorics of Schreier Graphs of Z-actions

Continuous Edge Chromatic Numbers of Abelian Group Actions

Self-Similar Structure of k- and Biperiodic Fibonacci Words

Borel Combinatorics of Schreier Graphs of $Z$ -actions

Self-Similar Structure of $k$ - and Biperiodic Fibonacci Words