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The Jones polynomial can be expressed in terms of spanning trees of the graph obtained by checkerboard coloring a knot diagram. We show there exists a complex generated by these spanning trees whose homology is the reduced Khovanov…

Geometric Topology · Mathematics 2009-04-22 Abhijit Champanerkar , Ilya Kofman

We define a homology theory of virtual links built out of the direct sum of the standard Khovanov complex with itself, motivating the name doubled Khovanov homology. We demonstrate that it can be used to show that some virtual links are…

Geometric Topology · Mathematics 2019-08-15 William Rushworth

Quasi-alternating links are a natural generalization of alternating links. In this paper, we show that quasi-alternating links are "homologically thin" for both Khovanov homology and knot Floer homology. In particular, their bigraded…

Geometric Topology · Mathematics 2008-03-26 Ciprian Manolescu , Peter Ozsvath

We show examples of knots with the same polynomial invariants and hyperbolic volumes, with variously coinciding 2-cable polynomials and colored Jones polynomials, which are not mutants.

Geometric Topology · Mathematics 2008-09-24 Alexander Stoimenow , Toshifumi Tanaka

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 give characterizations of the skein polynomial for links (as well as Jones and Alexander-Conway polynomials derivable from it), avoiding the usual "smoothing of a crossing" move. As by-products we have characterizations of these…

Geometric Topology · Mathematics 2024-07-09 Boju Jiang , Jiajun Wang , Hao Zheng

A discussion given to the question of extending Khovanov homology from links to embedded graphs, by using the Kauffman topological invariant of embedded graphs by associating family of links and knots to a such graph by using some local…

Algebraic Topology · Mathematics 2013-08-13 Ahmad Zainy Al-Yasry

Genus 2 mutation is the process of cutting a 3-manifold along an embedded closed genus 2 surface, twisting by the hyper-elliptic involution, and gluing back. This paper compares genus 2 mutation with the better-known Conway mutation in the…

Geometric Topology · Mathematics 2012-02-21 Nathan M. Dunfield , Stavros Garoufalidis , Alexander Shumakovitch , Morwen Thistlethwaite

We classify all links whose Khovanov homology have ranks no greater than 8, and all three-component links whose Khovanov homology have ranks no greater than 12, where the coefficient ring is Z/2. The classification is based on the previous…

Geometric Topology · Mathematics 2020-05-12 Yi Xie , Boyu Zhang

We give a short elementary proof that a Khovanov-type link homology constructed from a diagonalisable Frobenius algebra is degenerate.

Geometric Topology · Mathematics 2018-03-28 Paul Turner

We present a new 2-variable generalization of the Jones polynomial that can be defined through the skein relation of the Jones polynomial. The well-definedness of this new generalization is proved both algebraically and diagrammatically as…

Geometric Topology · Mathematics 2018-11-09 Dimos Goundaroulis , Sofia Lambropoulou

In this paper we compute the signature for a family of knots $W(k,n)$, the weaving knots of type $(k,n)$. By work of E.~S.~Lee the signature calculation implies a vanishing theorem for the Khovanov homology of weaving knots. Specializing to…

Geometric Topology · Mathematics 2017-04-14 Rama Mishra , Ross Staffeldt

In [Duke Math. J. 101 (1999) 359-426], Mikhail Khovanov constructed a homology theory for oriented links, whose graded Euler characteristic is the Jones polynomial. He also explained how every link cobordism between two links induces a…

Geometric Topology · Mathematics 2014-10-01 Magnus Jacobsson

Plamenevskaya defined an invariant of transverse links as a distinguished class in the even Khovanov homology of a link. We define an analog of Plamenevskaya's invariant in the odd Khovanov homology of Ozsv\'ath, Rasmussen, and Szab\'o. We…

Geometric Topology · Mathematics 2020-10-14 Gabriel Montes de Oca

Using Bar-Natan's Khovanov homology we define a homology theory for coloured, oriented, framed links. We then compute this explicitly.

Geometric Topology · Mathematics 2007-05-23 Marco Mackaay , Paul Turner

Given any oriented link diagram, two types of new knot invariants are constructed. They satisfy some generalized skein relations. The coefficients of each invariant is from a commutative ring. Homomorphisms and representations of those…

Geometric Topology · Mathematics 2011-05-10 Zhiqing Yang

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

Based on the results of the second author, we define an equivariant version of Lee and Bar-Natan homology for periodic links and show that there exists an equivariant spectral sequence from the equivariant Khovanov homology to equivariant…

Geometric Topology · Mathematics 2017-07-13 Maciej Borodzik , Wojciech Politarczyk

This paper continues the study of periodic links started in \cite{Politarczyk2}. It contains a study of the equivariant analogues of the Jones polynomial, which can be obtained from the equivariant Khovanov homology. In this paper we…

Geometric Topology · Mathematics 2017-12-11 Wojciech Politarczyk

We describe a "concentration on the diagonal" condition on the Khovanov complex of tangles, show that this condition is satisfied by the Khovanov complex of the single crossing tangles, and prove that it is preserved by alternating planar…

Geometric Topology · Mathematics 2014-03-07 Dror Bar-Natan , Hernando Burgos-Soto