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Bibliographic Details
Main Author: Chen, Guanheng
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2309.03845
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Table of Contents:
  • Fix a suitable link on the disk. Recently, F. Morabito associates each Hamiltonian symplecticmorphism preserving the link to a braid type. Based on this construction, Morabito defines a family of pseudometrics on the braid groups by using the Hofer metric. In this paper, we show that two Hamiltonian symplecticmorphisms define the same braid type provided that their Hofer distance is sufficiently small. As a corollary, the pseudometric defined by Morabito is nondegenerate.