Neighborhoods of transverse knots and destabilizations

Fuente: arXiv
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Main Author: Etnyre, John B.
Format: Preprint
Published: 2025
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author Etnyre, John B.
author_facet Etnyre, John B.
contents In this note, we show that transverse knots have unique standard neighborhoods and prove a structure theorem about non-loose Legendrian knots. We also prove a finiteness result for transverse knots in a tight contact manifold. The common theme of these two results is a general destabilization result for Legendrian knots. As a byproduct of this work, we find a manifold with an infinite number of distinct tight contact structures, up to contactomoprhism, with no Giroux torsion.
format Preprint
id arxiv_https___arxiv_org_abs_2512_15651
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Neighborhoods of transverse knots and destabilizations
Etnyre, John B.
Geometric Topology
Symplectic Geometry
In this note, we show that transverse knots have unique standard neighborhoods and prove a structure theorem about non-loose Legendrian knots. We also prove a finiteness result for transverse knots in a tight contact manifold. The common theme of these two results is a general destabilization result for Legendrian knots. As a byproduct of this work, we find a manifold with an infinite number of distinct tight contact structures, up to contactomoprhism, with no Giroux torsion.
title Neighborhoods of transverse knots and destabilizations
topic Geometric Topology
Symplectic Geometry
url https://arxiv.org/abs/2512.15651