Barcode entropy and relative symplectic cohomology

Jonghyeon Ahn

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arXiv · 2601.15606

Barcode entropy and relative symplectic cohomology

Jonghyeon Ahn

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Abstract

In this paper, we study the barcode entropy--the exponential growth rate of the number of not-too-short bars--of the persistence module associated with the relative symplectic cohomology $SH_M(K)$ of a Liouville domain $K$ embedded in a symplectic manifold $M$. Our main result establishes a quantitative link between this Floer-theoretic invariant and the dynamics of the Reeb flow on $\partial K$. More precisely, we show that the barcode entropy of the relative symplectic cohomology $SH_M(K)$ is bounded above by a constant multiple of the topological entropy of the Reeb flow on the boundary of the domain, where the constant depends on the embedding of $K$ into $M$.

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Jonghyeon Ahn. 2026-01-22. Barcode entropy and relative symplectic cohomology. https://arxiv.org/abs/2601.15606

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