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
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03/06/2026 09:15
03/06/2026 10:45
IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar
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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 AccessSpeakers
Jonghyeon Ahn, IBS Center for Geometry and Physics (IBS-CGP)
Event Series
Categories
Notes
Seminar site: https://www.math.ias.edu/~sarabt/zoominar/