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Related papers: L-space knots have no essential Conway spheres

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We present two examples of strongly invertible L-space knots whose surgeries are never the double branched cover of a Khovanov thin link in the 3-sphere. Consequently, these knots provide counterexamples to a conjectural characterization of…

Geometric Topology · Mathematics 2026-02-10 Kenneth L. Baker , Marc Kegel , Duncan McCoy

Using Hirasawa-Murasugi's classification of fibered Montesinos knots we classify the L-space Montesinos knots, providing further evidence towards a conjecture of Lidman-Moore that L-space knots have no essential Conway spheres. In the…

Geometric Topology · Mathematics 2014-05-01 Kenneth L. Baker , Allison H. Moore

We construct an infinite family of knots in rational homology spheres with irreducible, non-fibered complements, for which every non-longitudinal filling is an L-space.

Geometric Topology · Mathematics 2016-01-20 Tye Lidman , Liam Watson

With a 4-ended tangle $T$, we associate a Heegaard Floer invariant $\operatorname{CFT^\partial}(T)$, the peculiar module of $T$. Based on Zarev's bordered sutured Heegaard Floer theory, we prove a glueing formula for this invariant which…

Geometric Topology · Mathematics 2019-10-22 Claudius Zibrowius

We show that the integer homology sphere obtained by splicing two nontrivial knot complements in integer homology sphere L-spaces has Heegaard Floer homology rank strictly greater than one. In particular, splicing the complements of…

Geometric Topology · Mathematics 2015-09-11 Matthew Hedden , Adam Simon Levine

We prove that instanton L-space knots are fibered and strongly quasipositive. Our proof differs conceptually from proofs of the analogous result in Heegaard Floer homology, and includes a new decomposition theorem for cobordism maps in…

Geometric Topology · Mathematics 2023-09-08 John A. Baldwin , Steven Sivek

For each connected alternating tangle, we provide an infinite family of non-left-orderable L-spaces. This gives further support for Conjecture [3] of Boyer, Gordon, and Watson that is a rational homology 3-sphere is an L-space if and only…

Geometric Topology · Mathematics 2021-11-29 Hamid Abchir , Mohammed Sabak

We use quilted Floer theory to construct functor-valued invariants of tangles arising from moduli spaces of flat bundles on punctured surfaces. As an application, we show the non-triviality of certain elements in the symplectic mapping…

Symplectic Geometry · Mathematics 2016-03-22 Katrin Wehrheim , Chris Woodward

We exhibit homology spheres which never yield lens spaces by any integral Dehn surgery by using Ozsvath Szabo's contact invariant.

Geometric Topology · Mathematics 2008-10-20 Motoo Tange

We describe a simple formula for computing the Heegaard Floer multicurve invariant of double tangles from the Heegaard Floer multicurve invariant of knot complements. A comparison with a similar multicurve invariant for Conway tangles in…

Geometric Topology · Mathematics 2023-04-20 Claudius Zibrowius

When restricted to alternating links, both Heegaard Floer and Khovanov homology concentrate along a single diagonal $\delta$-grading. This leads to the broader class of thin links that one would like to characterize without reference to the…

Geometric Topology · Mathematics 2024-05-22 Artem Kotelskiy , Liam Watson , Claudius Zibrowius

Conjecturally, a knot in the 3-sphere has only finitely many non-integer non-characterizing slopes. We verify this conjecture for all knots with knot Floer homology satisfying certain simplicity conditions. The class of knots satisfying our…

Geometric Topology · Mathematics 2025-02-11 Duncan McCoy

Knot Floer homology is an invariant for knots in the three-sphere for which the Euler characteristic is the Alexander-Conway polynomial of the knot. The aim of this paper is to study this homology for a class of satellite knots, so as to…

Geometric Topology · Mathematics 2010-04-26 Yuanyuan Bao

We classify genus-two L-space knots in the Poincar\'e homology sphere. This leads to the second knot Floer homology detection result for a knot of genus at least two, and the first such result outside of $S^3$. The argument uses the theory…

Geometric Topology · Mathematics 2023-06-02 Braeden Reinoso

In this paper we look at the knot complement problem for L-space $\mathbb{Z}$-homology spheres. We show that an L-space $\mathbb{Z}$-homology sphere $Y$ cannot be obtained as a non-trivial surgery along a knot $K\subset Y$. As a…

Geometric Topology · Mathematics 2022-11-18 Huygens C. Ravelomanana

We give a new, conceptually simpler proof of the fact that knots in $S^3$ with positive L-space surgeries are fibered and strongly quasipositive. Our motivation for doing so is that this new proof uses comparatively little Heegaard…

Geometric Topology · Mathematics 2022-11-02 John A. Baldwin , Steven Sivek

We study a theory of finite type invariants for null-homologous knots in rational homology 3-spheres with respect to null Lagrangian-preserving surgeries. It is an analogue in the setting of the rational homology of the Goussarov-Rozansky…

Geometric Topology · Mathematics 2019-06-26 Delphine Moussard

We give new obstructions to the module structures arising in Heegaard Floer homology. As a corollary, we characterize the possible modules arising as the Heegaard Floer homology of an integer homology sphere with one-dimensional reduced…

Geometric Topology · Mathematics 2017-08-01 Jonathan Hanselman , Cagatay Kutluhan , Tye Lidman

We give a new, elementary proof that Khovanov homology with $\mathbb{Z}/2\mathbb{Z}$--coefficients is invariant under Conway mutation. This proof also gives a strategy to prove Baldwin and Levine's conjecture that $\delta$--graded knot…

Geometric Topology · Mathematics 2017-01-31 Peter Lambert-Cole

We prove that (1,1) non-L-space knots in $S^3$ and lens spaces are persistently foliar. This provides positive evidence for the L-space conjecture.

Geometric Topology · Mathematics 2026-02-09 Qingfeng Lyu
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