IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar

Barcode Entropy and Relative Symplectic Cohomology

In this talk, I will discuss 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 $M$. The main result establishes a quantitative link between this Floer-theoretic invariant and the dynamics of the Reeb flow on $∂K$. More precisely, I will explain 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 $M$.

Date & Time

March 06, 2026 | 9:15am – 10:45am
Add to calendar 03/06/2026 09:15 03/06/2026 10:45 IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar use-title Topic: Barcode Entropy and Relative Symplectic Cohomology Speakers: Jonghyeon Ahn, IBS Center for Geometry and Physics (IBS-CGP) More: https://www.ias.edu/math/events/iasprincetonmontrealparistel-aviv-symplectic-geometry-zoominar-28 In this talk, I will discuss 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 $M$. The main result establishes a quantitative link between this Floer-theoretic invariant and the dynamics of the Reeb flow on $∂K$. More precisely, I will explain 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 $M$. Remote Access a7a99c3d46944b65a08073518d638c23

Location

Remote Access

Speakers

Jonghyeon Ahn, IBS Center for Geometry and Physics (IBS-CGP)

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