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相关论文: Non-loose torus knots in $S^1\times S^2$

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We give a complete coarse classification of Legendrian and transverse torus knots in any contact structure on $S^3$.

几何拓扑 · 数学 2022-07-01 John B. Etnyre , Hyunki Min , Anubhav Mukherjee

We classify the Legendrian torus knots in S^1\times S^2 with its standard tight contact structure up to Legendrian isotopy.

几何拓扑 · 数学 2013-10-08 Feifei Chen , Fan Ding , Youlin Li

In this note, we first classify all topological torus knots lying on the Heegaard torus in lens spaces, and then we study Legendrian representatives of these knots. We classify oriented positive Legendrian torus knots in the universally…

几何拓扑 · 数学 2017-10-02 Sinem Onaran

In this paper we give necessary and sufficient conditions for a knot type to admit non-loose Legendrian and transverse representatives in some overtwisted contact structure, classify all non-loose rational unknots in lens spaces, and…

几何拓扑 · 数学 2023-10-10 Rima Chatterjee , John B. Etnyre , Hyunki Min , Anubhav Mukherjee

We classify Legendrian torus knots and figure eight knots in the tight contact structure on the 3-sphere up to Legendrian isotopy. As a corollary to this we also obtain the classification of transversal torus knots and figure eight knots up…

几何拓扑 · 数学 2007-05-23 John B. Etnyre , Ko Honda

We classify positive transversal torus knots in tight contact structures up to transversal isotopy.

几何拓扑 · 数学 2014-11-11 John B. Etnyre

In this paper we classify Legendrian and transverse knots in the knot types obtained from positive torus knots by cabling. This classification allows us to demonstrate several new phenomena. Specifically, we show there are knot types that…

几何拓扑 · 数学 2014-11-11 John B. Etnyre , Douglas J. LaFountain , Bulent Tosun

We study Legendrian knots in a cabled knot type. Specifically, given a topological knot type K, we analyze the Legendrian knots in knot types obtained from K by cabling, in terms of Legendrian knots in the knot type K. As a corollary of…

辛几何 · 数学 2007-06-13 John B. Etnyre , Ko Honda

It is shown that Legendrian (resp. transverse) cable links in the 3-sphere with its standard tight contact structure, i.e. links consisting of an unknot and a cable of that unknot, are classified by their oriented link type and the…

辛几何 · 数学 2007-12-18 Fan Ding , Hansjörg Geiges

We study the behavior of Legendrian and transverse knots under the operation of connected sums. As a consequence we show that there exist Legendrian knots that are not distinguished by any known invariant. Moreover, we classify Legendrian…

辛几何 · 数学 2007-05-23 John B. Etnyre , Ko Honda

We study Legendrian and transverse realizations of the negative torus knots $T_{(p,-q)}$ in all contact structures on the $3$-sphere. We give a complete classification of the strongly non-loose transverse realizations and the strongly…

几何拓扑 · 数学 2023-03-02 Irena Matkovič

We prove that each overtwisted contact structure has knot types that are represented by infinitely many distinct transverse knots all with the same self-linking number. In some cases, we can even classify all such knots. We also show…

辛几何 · 数学 2012-01-04 John B. Etnyre

The main theorem characterizes all Legendrian negative torus knots in universally tight lens space in the sense of coarse equivalence. Together with Onaran's results on Legendrian positive torus knots, all Legendrian torus knots in…

几何拓扑 · 数学 2024-12-09 Han Zhang

We present an atlas of Legendrian knots in standard contact three-space. This gives a conjectural Legendrian classification for all knots with arc index at most 9, including alternating knots through 7 crossings and nonalternating knots…

辛几何 · 数学 2013-05-08 Wutichai Chongchitmate , Lenhard Ng

All knots in $R^3$ possess Seifert surfaces, and so the classical Thurston-Bennequin and rotation (or Maslov) invariants for Legendrian knots in a contact structure on $R^3$ can be defined. The definitions extend easily to null-homologous…

几何拓扑 · 数学 2015-02-27 Paul A. Schweitzer SJ , Fábio S. Souza

The aim of this paper is to realise the techniques of picture-valued invariants and invariants valued in free groups for long knots in the full torus. Such knots and links are of a particular interest because of their relation to Legendrian…

代数拓扑 · 数学 2021-09-16 Sera Kim , Seongjeong Kim , Vassily Olegovich Manturov

We show that for a big class of contact manifolds the groups of order $\leq n$ invariants (with values in an arbitrary Abelian group) of Legendrian, of transverse and of framed knots are canonically isomorphic. On the other hand for an…

辛几何 · 数学 2007-05-23 Vladimir Tchernov

Using convex surfaces and Kanda's classification theorem, we classify Legendrian isotopy classes of Legendrian linear curves in all tight contact structures on $T^3$. Some of the knot types considered in this article provide new examples of…

几何拓扑 · 数学 2007-05-23 Paolo Ghiggini

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…

几何拓扑 · 数学 2026-05-06 John B. Etnyre

We present classification results for exceptional Legendrian realisations of torus knots. These are the first results of that kind for non-trivial topological knot types. Enumeration results of Ding-Li-Zhang concerning tight contact…

辛几何 · 数学 2021-01-05 Hansjörg Geiges , Sinem Onaran
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