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arXiv · 2212.09190

$C^0$-limits of Legendrians and positive loops

Georgios Dimitroglou Rizell·Michael G. Sullivan
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Abstract

We show that the image of a Legendrian submanifold under a homeomorphism that is the $C^0$-limit of a sequence of contactomorphisms is again Legendrian, if the image of the submanifold is smooth. In proving this, we show that any non-Legendrian submanifold of a contact manifold admits a positive loop and we provide a parametric refinement of the Rosen--Zhang result on the degeneracy of the Chekanov--Hofer--Shelukhin pseudo-norm for non-Legendrians.

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Georgios Dimitroglou Rizell, Michael G. Sullivan. 2022-12-18. $C^0$-limits of Legendrians and positive loops. https://doi.org/10.1112/s0010437x24007474

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