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We define several concordance invariants using knot Floer homology which give improvements over known slice genus and clasp number bounds from Heegaard Floer homology. We also prove that the involutive correction terms of Hendricks and…

Geometric Topology · Mathematics 2020-10-06 András Juhász , Ian Zemke

Using the conjugation symmetry on Heegaard Floer complexes, we define a three-manifold invariant called involutive Heegaard Floer homology, which is meant to correspond to $\mathbb{Z}_4$-equivariant Seiberg-Witten Floer homology. Further,…

Geometric Topology · Mathematics 2017-10-18 Kristen Hendricks , Ciprian Manolescu

We compute the knot Floer filtration induced by a cable of the meridian of a knot in the manifold obtained by large integer surgery along the knot. We give a formula in terms of the original knot Floer complex of the knot in the…

Geometric Topology · Mathematics 2019-04-02 Linh Truong

This is an expository paper discussing some parallels between the Khovanov and knot Floer homologies. We describe the formal similarities between the theories and give some examples which illustrate a somewhat mysterious correspondence…

Geometric Topology · Mathematics 2007-05-23 Jacob Rasmussen

We prove that the knot Floer complex of a fibered knot detects whether the monodromy of its fibration is right-veering. In particular, this leads to a purely knot Floer-theoretic characterization of tight contact structures, by the work of…

Geometric Topology · Mathematics 2025-01-07 John A. Baldwin , Yi Ni , Steven Sivek

Using a combinatorial approach described in a recent paper of Manolescu, Ozsv\'ath, and Sarkar we compute the Heegaard-Floer knot homology of all knots with at most 12 crossings as well as the $\tau$ invariant for knots through 11…

Geometric Topology · Mathematics 2007-05-23 John A. Baldwin , W. D. Gillam

We modify the construction of knot Floer homology to produce a one-parameter family of homologies for knots in the three-sphere. These invariants can be used to give homomorphisms from the smooth concordance group to the integers, giving…

Geometric Topology · Mathematics 2017-06-14 Peter Ozsvath , Andras Stipsicz , Zoltan Szabo

We show that if K is a non-trivial knot inside a homology sphere Y, then the rank of knot Floer homology associated with K is strictly bigger than the rank of Heegaard Floer homology of Y.

Geometric Topology · Mathematics 2013-11-06 Eaman Eftekhary

We establish a surgery exact triangle for involutive Heegaard Floer homology by using a doubling model of the involution. We use this exact triangle to give an involutive version of Ozsv\'ath-Szab\'o's mapping cone formula for knot surgery.…

Geometric Topology · Mathematics 2025-07-04 Kristen Hendricks , Jennifer Hom , Matthew Stoffregen , Ian Zemke

We establish some new relationships between Milnor invariants and Heegaard Floer homology. This includes a formula for the Milnor triple linking number from the link Floer complex, detection results for the Whitehead link and Borromean…

Geometric Topology · Mathematics 2020-06-30 Eugene Gorsky , Tye Lidman , Beibei Liu , Allison H. Moore

In a previous paper, V\'ertesi and the first author used grid-like Heegaard diagrams to define tangle Floer homology, which associates to a tangle $T$ a differential graded bimodule $\widetilde{\mathrm{CT}} (T)$. If $L$ is obtained by…

Geometric Topology · Mathematics 2023-03-14 Ina Petkova , C. -M. Michael Wong

Let L be a link in an thickened annulus. We specify the embedding of this annulus in the three sphere, and consider its complement thought of as the axis to L. In the right circumstances this axis lifts to a null-homologous knot in the…

Geometric Topology · Mathematics 2014-11-11 Lawrence P. Roberts

Given a grid diagram for a knot or link K in $S^3$, we construct a filtered spectrum whose homology is the knot Floer homology of K. We conjecture that the filtered homotopy type of the spectrum is an invariant of K. Our construction does…

Geometric Topology · Mathematics 2025-09-11 Ciprian Manolescu , Sucharit Sarkar

We apply the methods of Heegaard Floer homology to identify topological properties of complex curves in the complex projective plane. As one application, we resolve an open conjecture that constrains the Alexander polynomial of the link of…

Algebraic Geometry · Mathematics 2016-09-15 Maciej Borodzik , Charles Livingston

We establish two spectral sequences in knot Floer homology associated to a directed strongly invertible knot K: one from the knot Floer homology of K to a two dimensional vector space, and one from the singular knot Floer homology of a…

Geometric Topology · Mathematics 2024-08-27 Aakash Parikh

For pattern knots admitting genus-one bordered Heegaard diagrams, we show the knot Floer chain complexes of the corresponding satellite knots can be computed using immersed curves. This, in particular, gives a convenient way to compute the…

Geometric Topology · Mathematics 2021-07-09 Wenzhao Chen

We show that if a positive integral surgery on a knot K inside a homology sphere X with Seifert genus g(K) results in an induced knot K_n in X_n(K)=Y which has simple Floer homology, we should have n>=2g(K). Moreover, if X is the standard…

Geometric Topology · Mathematics 2010-03-19 Eaman Eftekhary

The purpose of this thesis is to define a "local" version of Ozsv\'{a}th and Szab\'{o}'s Heegaard Floer homology $\operatorname{\widehat{HFL}}$ for links in the 3-dimensional sphere, i.e. a Heegaard Floer homology…

Geometric Topology · Mathematics 2017-04-03 Claudius Zibrowius

We explain how to use bordered algebras to compute a version of link Floer homology. As a corollary, we also give a fast computation of the Thuston polytope for links in the three-sphere.

Geometric Topology · Mathematics 2020-04-17 Peter Ozsvath , Zoltan Szabo

By proving a connected sum formula for the Legendrian invariant $\lambda_+$ in knot Floer homology we exhibit infinitely many transversely non simple knots.

Symplectic Geometry · Mathematics 2016-01-20 Vera Vértesi