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arXiv 1010.2162math.DSmath.GR
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可数状态马氏位移的诱导拓扑压

Induced topological pressure for countable state Markov shifts

Johannes Jaerisch, Marc Kesseböhmer, Sanaz Lamei

摘要:

我们引入了可数状态马尔可夫位移关于非负标度函数和有限字任意子集的诱导拓扑压力的概念。首先,标度函数允许直接访问重要的物理量,这些物理量通常仅由涉及经典定义的压力的某些恒等式隐式给出。在这种情况下,我们一般化Savchenko的定义熵的特殊流量相应的概念的拓扑压力,并表明,这一新的概念与诱导压力的一大类Hölder连续高度函数不一定有界远离零。其次,依赖的子集的话引起了有趣的新的结果连接的Gurevi{ \vc }和经典的压力与耗尽原则的一大类马尔可夫移位。在这种情况下,我们考虑动态群扩展,以证明我们的新方法提供了一个有用的工具,潜在的群结构的可扩展性。

英文摘要:

We introduce the notion of induced topological pressure for countable state Markov shifts with respect to a non-negative scaling function and an arbitrary subset of finite words. Firstly, the scaling function allows a direct access to important thermodynamical quantities, which are usually given only implicitly by certain identities involving the classically defined pressure. In this context we generalise Savchenko's definition of entropy for special flows to a corresponding notion of topological pressure and show that this new notion coincides with the induced pressure for a large class of Hölder continuous height functions not necessarily bounded away from zero. Secondly, the dependence on the subset of words gives rise to interesting new results connecting the Gurevi{\vc} and the classical pressure with exhausting principles for a large class of Markov shifts. In this context we consider dynamical group extentions to demonstrate that our new approach provides a useful tool to characterise amenability of the underlying group structure.

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