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arXiv · 1710.02816

Unstable pressure and u-equilibrium states for partially hyperbolic diffeomorphsims

Huyi Hu·Weisheng Wu·Yujun Zhu
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Abstract

Unstable pressure and u-equilibrium states are introduced and investigated for a partially hyperbolic diffeomorphsim $f$. We define the u-pressure $P^u(f, \varphi)$ of $f$ at a continuous function $\varphi$ via the dynamics of $f$ on local unstable leaves. A variational principle for unstable pressure $P^u(f, \varphi)$, which states that $P^u(f, \varphi)$ is the supremum of the sum of the unstable entropy and the integral of $\varphi$ taken over all invariant measures, is obtained. U-equilibrium states at which the supremum in the variational principle attains and their relation to Gibbs u-states are studied. Differentiability properties of unstable pressure, such as tangent functionals, Gateaux differentiability and Fr\'{e}chet differentiability and their relations to u-equilibrium states, are also considered.

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Huyi Hu, Weisheng Wu, Yujun Zhu. 2017-10-08. Unstable pressure and u-equilibrium states for partially hyperbolic diffeomorphsims. https://arxiv.org/abs/1710.02816

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