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We define an annular concordance invariant and study its properties. When specialized to braids, this invariant gives bounds on band rank. We introduce a modified chain complex to reformulate the invariant. Then, by focusing on a special…

几何拓扑 · 数学 2023-01-26 Apratim Chakraborty

By applying Seifert's algorithm to a special alternating diagram of a link L, one obtains a Seifert surface F of L. We show that the support of the sutured Floer homology of the sutured manifold complementary to F is affine isomorphic to…

几何拓扑 · 数学 2013-10-18 András Juhász , Tamás Kálmán , Jacob Rasmussen

We modify our previous construction of link homology in order to include a natural duality functor $\mathfrak{F}$. To a link $L$ we associate a triply-graded module $HXY(L)$ over the graded polynomial ring…

一般拓扑 · 数学 2020-10-29 Alexei Oblomkov , Lev Rozansky

We provide an intergral lift of the combinatorial definition of Heegaard Floer homology for nice diagrams, and show that the proof of independence using convenient diagrams adapts to this setting.

几何拓扑 · 数学 2013-01-04 Peter Ozsváth , András I. Stipsicz , Zoltán Szabó

We extend the theory of combinatorial link Floer homology to a class of oriented spatial graphs called transverse spatial graphs. To do this, we define the notion of a grid diagram representing a transverse spatial graph, which we call a…

几何拓扑 · 数学 2018-03-16 Shelly Harvey , Danielle O'Donnol

We apply sutured Floer homology techniques to study the knot and link Floer homologies of various links with annuli embedded in their exteriors. Our main results include, for large $m$, characterizations of links with the same link Floer…

几何拓扑 · 数学 2024-05-21 Fraser Binns , Subhankar Dey

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…

几何拓扑 · 数学 2025-09-11 Ciprian Manolescu , Sucharit Sarkar

This is a survey article about knot Floer homology. We present three constructions of this invariant: the original one using holomorphic disks, a combinatorial description using grid diagrams, and a combinatorial description in terms of the…

几何拓扑 · 数学 2016-03-18 Ciprian Manolescu

We define a higher-dimensional analogue of symplectic Khovanov homology. Consider the standard Lefschetz fibration $p\colon W\to D\subset\mathbb{C}$ of a $2n$-dimensional Milnor fiber of the $A_{2\kappa-1}$ singularity. We represent a link…

辛几何 · 数学 2023-09-26 Tianyu Yuan

A. Casson defined an intersection number invariant which can be roughly thought of as the number of conjugacy classes of irreducible representations of $\pi_1(Y)$ into $SU(2)$ counted with signs, where $Y$ is an oriented integral homology…

q-alg · 数学 2008-02-03 Weiping Li

For a word w in the braid group on n-strands, we denote by T_w the corresponding transverse braid in the rotational symmetric tight contact structure on S^3. We exhibit a map on link Floer homology which sends the transverse invariant…

几何拓扑 · 数学 2016-01-20 John A. Baldwin

The Upsilon invariant is a concordance invariant in knot Floer homology. F\"{o}ldv\'{a}ri reconstructed the Upsilon invariant using grid homology. We prove that the Upsilon invariant in knot Floer homology and one in grid homology are…

几何拓扑 · 数学 2024-12-12 Hajime Kubota

Inspired by the $S^n$ colored version of Khovanov and Khovanov-Rozansky homology, we define a colored version of knot Floer homology by studying the colimit of a directed system of link Floer homology with infinite full twists.…

几何拓扑 · 数学 2025-09-01 Akram Alishahi , Eugene Gorsky , Beibei Liu

Let L be a link in an integral homology three-sphere. We give a description of the Heegaard Floer homology of integral surgeries on L in terms of some data associated to L, which we call a complete system of hyperboxes for L. Roughly, a…

几何拓扑 · 数学 2025-10-01 Ciprian Manolescu , Peter Ozsvath

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…

几何拓扑 · 数学 2023-03-14 Ina Petkova , C. -M. Michael Wong

Using the combinatorial approach to knot Floer homology, we define an invariant for Legendrian knots in the three-sphere, which takes values in link Floer homology. This invariant can be used to also construct an invariant of transverse…

几何拓扑 · 数学 2014-11-11 Peter Ozsvath , Zoltan Szabo , Dylan Thurston

We study the behavior of $\mathrm{Pin}(2)$-monopole Floer homology under connected sums. After constructing a (partially defined) $\mathcal{A}_{\infty}$-module structure on the $\mathrm{Pin}(2)$-monopole Floer chain complex of a three…

几何拓扑 · 数学 2017-09-20 Francesco Lin

We use the immersed curves description of bordered Floer homology to study $d$-invariants of double branched covers $\Sigma_2(L)$ of arborescent links $L \subset S^3$. We define a new invariant $\Delta_{sym}$ of bordered…

几何拓扑 · 数学 2024-10-30 Jonathan Hanselman , Marco Marengon , Biji Wong

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…

几何拓扑 · 数学 2024-08-27 Aakash Parikh

For any link of two components in an integral homology sphere, we define an instanton Floer homology whose Euler characteristic is the linking number between the components of the link. We relate this Floer homology to the Kronheimer-Mrowka…

几何拓扑 · 数学 2011-09-27 Eric Harper , Nikolai Saveliev