Hofer energy and link preserving diffeomorphisms in higher genus

Given a pre-monotone Lagrangian link, we obtain Hofer energy estimates for Hamiltonian diffeomorphisms preserving it. Such estimates depend on the braid type of the Hamiltonian diffeomorphism only, and the natural language to talk about this phenomenon is provided by a family of norms on braid groups for surfaces with boundary. This generalizes the results obtained by the first author to higher genus surfaces with boundary.

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Journal
Journal of Modern Dynamics
Published
2025-01-01
DOI
https://doi.org/10.3934/jmd.2025010
Primary Topic
Geometric and Algebraic Topology
Type
article
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article

Hofer energy and link preserving diffeomorphisms in higher genus

Francesco Carlo Morabito, Ibrahim Trifa
Journal of Modern Dynamics
Geometric and Algebraic Topology
article

Hofer energy and link preserving diffeomorphisms in higher genus

Francesco Carlo Morabito, Ibrahim Trifa
article en

Abstract

Given a pre-monotone Lagrangian link, we obtain Hofer energy estimates for Hamiltonian diffeomorphisms preserving it. Such estimates depend on the braid type of the Hamiltonian diffeomorphism only, and the natural language to talk about this phenomenon is provided by a family of norms on braid groups for surfaces with boundary. This generalizes the results obtained by the first author to higher genus surfaces with boundary.

Journal of Modern DynamicsVol. 21(0)
ETH Zurich (CH)
Affordable and clean energy
Openalex Percentile: Top 75%
Geometric and Algebraic Topology
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