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Related papers: Some differentials on Khovanov-Rozansky homology

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For every positive integer $n$ we construct a bigraded homology theory for links, such that the corresponding invariant of the unknot is closely related to the U(n)-equivariant cohomology ring of $\mathbb{CP}^{n-1}$; our construction…

Quantum Algebra · Mathematics 2008-05-08 Daniel Krasner

Using derived categories of equivariant coherent sheaves we construct a knot homology theory which categorifies the quantum sl(m) knot polynomial. Our knot homology naturally satisfies the categorified MOY relations and is conjecturally…

Algebraic Geometry · Mathematics 2015-05-13 Sabin Cautis , Joel Kamnitzer

We construct a new spectral sequence beginning at the Khovanov homology of a link and converging to the Khovanov homology of the disjoint union of its components. The page at which the sequence collapses gives a lower bound on the splitting…

Quantum Algebra · Mathematics 2015-11-03 Joshua Batson , Cotton Seed

By considering a version of Khovanov homology incorporating both the Lee and $E(-1)$ differentials, we construct a $1$-parameter family of concordance homomorphisms similar to the Upsilon invariant from knot Floer homology. This invariant…

Geometric Topology · Mathematics 2020-12-14 William Ballinger

Given a knot, we ask how its Khovanov and Khovanov-Rozansky homologies change under the operation of introducing twists in a pair of strands. We obtain long exact sequences in homology and further algebraic structure which is then used to…

Geometric Topology · Mathematics 2014-08-01 Andrew Lobb

In a previous work, we defined an unoriented skein exact triangle in unoriented link Floer homology. In this paper, we iterate a modified version of this exact triangle and obtain a spectral sequence from various versions of Khovanov…

Geometric Topology · Mathematics 2025-05-06 Gheehyun Nahm

Besides offering a friendly introduction to knot homologies and quantum curves, the goal of these lectures is to review some of the concrete predictions that follow from the physical interpretation of knot homologies. In particular, this…

High Energy Physics - Theory · Physics 2016-10-28 Sergei Gukov , Ingmar Saberi

We prove the existence of a knot whose braid index the Morton-Franks-Williams inequality fails to detect but a related inequality (KR-MFW inequality), which uses new information of Khovanov-Rozansky homology, detects. We also prove, by…

Geometric Topology · Mathematics 2008-02-19 Keiko Kawamuro

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

A well-known conjecture states that for any $l$-component link $L$ in $S^3$, the rank of the knot Floer homology of $L$ (over any field) is less than or equal to $2^{l-1}$ times the rank of the reduced Khovanov homology of $L$. In this…

Geometric Topology · Mathematics 2021-07-22 John A. Baldwin , Adam Simon Levine , Sucharit Sarkar

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 define and study a family of link invariants $\mathit{HFK}_{n}(L)$. Although these homology theories are defined using holomorphic disc counts, they share many properties with $sl_{n}$ homology. Using these theories, we give a framework…

Geometric Topology · Mathematics 2018-04-11 Nathan Dowlin

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

There is a one-to-one correspondence between strong inversions on knots in the three-sphere and a special class of four-ended tangles. We compute the reduced Khovanov homology of such tangles for all strong inversions on knots with up to 9…

Geometric Topology · Mathematics 2022-11-02 Artem Kotelskiy , Liam Watson , Claudius Zibrowius

In these notes, I will sketch a new approach to Khovanov homology of knots and links based on counting the solutions of certain elliptic partial differential equations in four and five dimensions. The equations are formulated on four and…

Geometric Topology · Mathematics 2012-10-03 Edward Witten

For each positive integer n, Khovanov and Rozansky constructed an invariant of links in the form of a doubly-graded cohomology theory whose Euler characteristic is the sl(n) link polynomial. We use Lagrangian Floer cohomology on some…

Symplectic Geometry · Mathematics 2007-05-23 Ciprian Manolescu

This survey explores knot polynomials and their categorification, culminating in the homological invariants of knots. We begin with an overview of classical knot polynomials, progressing towards the superpolynomial and its role in unifying…

Geometric Topology · Mathematics 2025-06-13 Shivrat Sachdeva

We define a limiting $\mathfrak{sl}_N$ Khovanov-Rozansky homology for semi-infinite positive multi-colored braids, and we show that this limiting homology categorifies a highest-weight projector for a large class of such braids. This…

Geometric Topology · Mathematics 2020-06-10 Michael Willis

We revisit Rozansky's construction of Khovanov homology for links in $S^2\times S^1$, extending it to define Khovanov homology $Kh(L)$ for links $L$ in $M^r=#^r(S^2\times S^1)$ for any $r$. The graded Euler characteristic of $Kh(L)$ can be…

Geometric Topology · Mathematics 2019-10-24 Michael Willis

Using Dowlin's spectral sequence from Khovanov homology to knot Floer homology, we prove that reduced Khovanov homology (over $\mathbb{Q}$) detects the figure-eight knot.

Geometric Topology · Mathematics 2021-02-03 John A. Baldwin , Nathan Dowlin , Adam Simon Levine , Tye Lidman , Radmila Sazdanovic