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Related papers: Instanton Floer homology for two-component links

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We define a Floer-homology invariant for knots in an oriented three-manifold, closely related to the holomorphic disk Floer homologies for three-manifolds defined in an earlier paper. We set up basic properties of these invariants,…

Geometric Topology · Mathematics 2007-05-23 Peter Ozsvath , Zoltan Szabo

A companion paper to "On knot Floer homology in branched double covers" applied to braided branched loci. We reprove the main result of that paper concerning alternating branched loci when projected to an annulus, without using Khovanov…

Geometric Topology · Mathematics 2007-06-07 Lawrence P. Roberts

We follow the same technics we used before in \cite{AZ} of extending knot Floer homology to embedded graphs in a 3-manifold, by using the Kauffman topological invariant of embedded graphs by associating family of links and knots to a such…

Algebraic Topology · Mathematics 2018-01-08 Ahmad Zainy Al-Yasry

We define a new smooth concordance homomorphism based on the knot Floer complex and an associated concordance invariant, epsilon. As an application, we show that an infinite family of topologically slice knots are independent in the smooth…

Geometric Topology · Mathematics 2015-03-06 Jennifer Hom

We show that the knot group of any knot in any integer homology sphere admits a non-abelian representation into $SU(3)$ such that meridians are mapped to matrices whose eigenvalues are the three distinct third roots of unity. This answers…

Geometric Topology · Mathematics 2024-02-19 Aliakbar Daemi , Nobuo Iida , Christopher Scaduto

We show that link Floer homology detects the Thurston norm of a link complement. As an application, we show that the Thurston polytope of an alternating link is dual to the Newton polytope of its multi-variable Alexander polynomial. To…

Geometric Topology · Mathematics 2007-12-11 Peter Ozsvath , Zoltan Szabo

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.…

Geometric Topology · Mathematics 2025-09-01 Akram Alishahi , Eugene Gorsky , Beibei Liu

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…

Geometric Topology · Mathematics 2016-03-18 Ciprian Manolescu

Real Heegaard Floer homology is an invariant associated to a three-manifold equipped with an involution with nonempty fixed set of codimension two. We show that when the image of the fixed point set is nullhomologous in the quotient, the…

Geometric Topology · Mathematics 2026-04-20 Eha Srivastava

This article is a standalone introduction to sutured Floer homology for graduate students in geometry and topology. It is divided into three parts. The first part is an introductory level exposition of Lagrangian Floer homology. The second…

Geometric Topology · Mathematics 2013-04-10 Irida Altman

Using the covering involution on the double branched cover of the three-sphere branched along a knot, and adapting ideas of Hendricks-Manolescu and Hendricks-Hom-Lidman, we define new knot invariants and apply them to deduce novel linear…

Geometric Topology · Mathematics 2019-05-29 Antonio Alfieri , Sungkyung Kang , Andras I. Stipsicz

We prove that the rank of knot Floer homology detects the Hopf links, and generalize this result further to classify the links of the second smallest knot Floer homology. We also prove a knot Floer homology analog of arXiv:1910.04246v1…

Geometric Topology · Mathematics 2020-11-25 Juhyun Kim

Kronheimer and Mrowka defined invariants of balanced sutured manifolds using monopole and instanton Floer homology. Their invariants assign isomorphism classes of modules to balanced sutured manifolds. In this paper, we introduce…

Geometric Topology · Mathematics 2017-08-03 John A. Baldwin , Steven Sivek

Khovanov homology and singular instanton Floer homology are both functorial with respect to link cobordisms. Although the two homology groups are related by a spectral sequence, direct correspondence between the cobordism maps has not been…

Geometric Topology · Mathematics 2026-02-13 Hayato Imori , Taketo Sano , Kouki Sato , Masaki Taniguchi

We use path integral methods and topological quantum field theory techniques to investigate a generic classical Hamiltonian system. In particular, we show that Floer's instanton equation is related to a functional Euler character in the…

High Energy Physics - Theory · Physics 2009-10-28 Antti J. Niemi , Pirjo Pasanen

Let $K$ denote a knot inside the homology sphere $Y$. The zero-framed longitude of $K$ gives the complement of $K$ in $Y$ the structure of a bordered three-manifold, which may be denoted by $Y(K)$. We compute the quasi-isomorphism type of…

Geometric Topology · Mathematics 2019-02-20 Eaman Eftekhary

To each three-component link in the 3-sphere, we associate a geometrically natural characteristic map from the 3-torus to the 2-sphere, and show that the pairwise linking numbers and Milnor triple linking number that classify the link up to…

Geometric Topology · Mathematics 2016-11-23 Dennis DeTurck , Herman Gluck , Rafal Komendarczyk , Paul Melvin , Clayton Shonkwiler , David Shea Vela-Vick

Symplectic instanton homology is an invariant for closed oriented three-manifolds, defined by Manolescu and Woodward, which conjecturally corresponds to a symplectic version of a variant of Floer's instanton homology. In this thesis we…

Geometric Topology · Mathematics 2016-12-06 Guillem Cazassus

Based on the data of 12-17-crossing knots, we establish three new conjectures about the hyperbolic volume and knot cohomology: (1) There exists a constant $a \in R_{>0}$ such that the percentage of knots for which the following inequality…

Geometric Topology · Mathematics 2023-11-28 Ekaterina S. Ivshina

We apply the theory of "peculiar modules" for the Floer homology of 4-ended tangles developed by Zibrowius (specifically, the immersed curve interpretation of the tangle invariants) to compute the Knot Floer Homology ($\widehat{HFK}$) of…

Geometric Topology · Mathematics 2021-03-09 Konstantinos Varvarezos