Yu-Jun Zhu

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math.DS2017

Entropy Formula for Random $Z^{k}$ -actions

Yujun Zhu

In this paper, entropies, including measure-theoretic entropy and topological entropy, are considered for random $Z^{k}$ -actions which are generated by random compositions o…

math.DS2013

On an entropy of $Z_{+}^{k}$ -actions

Yujun Zhu, Wenda Zhang

In this paper, a definition of entropy for $Z_{+}^{k} (k \geq 2)$ -actions due to S. Friedland \cite{Friedland} is studied. Unlike the traditional definition, it may take a nonzer…

Entropy Formula for Random Zk-actions

On an entropy of Z+k​-actions

Entropy Formula for Random $Z^{k}$ -actions

On an entropy of $Z_{+}^{k}$ -actions