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math.DS2020★ 5 cited
Topological characteristic factors and nilsystems
Eli Glasner, Wen Huang, Song Shao +2
We prove that the maximal infinite step pro-nilfactor of a minimal dynamical system is the topological characteristic factor in a certain sense. Namely, we show…
math.DS2020
Topological characteristic factors and independence along arithmetic progressions
Fangzhou Cai, Song Shao
Let be a factor map of topological dynamics and . is said to be a -step topological characteristic factor if there exists…
math.DS2020
Minimal systems with finitely many ergodic measures
Wen Huang, Zhengxing Lian, Song Shao +1
In this paper it is proved that if a minimal system has the property that its sequence entropy is uniformly bounded for all sequences, then it has only finitely many ergodic measur…