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<p>In this paper we prove that the topological pressure of dynamical systems with normally hyperbolic trapping is negative. In particular, this applies to the null geodesic flow in Kerr and Kerr-de Sitter spacetimes. This builds a connection between results for trapped sets with low regularity in hyperbolic dynamical systems conditioning on negativity of the topological pressure and unconditional results in the setting of normally hyperbolic trapping.</p>

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The Topological Pressure of Trapped Sets in Kerr-(de Sitter) Spacetimes

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  • 发表日期：

    2026年7月7日

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  • Qiuye Jia

摘要

In this paper we prove that the topological pressure of dynamical systems with normally hyperbolic trapping is negative. In particular, this applies to the null geodesic flow in Kerr and Kerr-de Sitter spacetimes. This builds a connection between results for trapped sets with low regularity in hyperbolic dynamical systems conditioning on negativity of the topological pressure and unconditional results in the setting of normally hyperbolic trapping.