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Khovanov homology is a categorification of the Jones polynomial, so it may be seen as a kind of quantum invariant of knots and links. Although polynomial quantum invariants are deeply involved with Vassiliev (aka. finite type) invariants,…

Geometric Topology · Mathematics 2019-11-22 Noboru Ito , Jun Yoshida

For smooth embeddings of an integral homology 3-sphere in the 6-sphere, we define an integer invariant in terms of their Seifert surfaces. Our invariant gives a bijection between the set of smooth isotopy classes of such embeddings and the…

Geometric Topology · Mathematics 2007-05-23 Masamichi Takase

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

We introduce a class of links strictly containing quasi-alternating links for which mod 2 reduced Khovanov homology is always thin. We compute the framed instanton homology for double branched covers of such links. Aligning certain dotted…

Geometric Topology · Mathematics 2024-09-09 Christopher Scaduto , Matthew Stoffregen

Link invariants, for 3-manifolds, are defined in the context of the Rozansky-Witten theory. To each knot in the link one associates a holomorphic bundle over a holomorphic symplectic manifold X. The invariants are evaluated for b_{1}(M)…

High Energy Physics - Theory · Physics 2007-05-23 George Thompson

A braid-like isotopy for links in 3-space is an isotopy which uses only those Reidemeister moves which occur in isotopies of braids. We define a refined Jones polynomial and its corresponding Khovanov homology which are, in general, only…

Geometric Topology · Mathematics 2017-10-31 Benjamin Audoux , Thomas Fiedler

In this article, we give an elementary construction of homological invariants of links presented by braid closures. The Euler characteristic of this complex is equal to quantum polynomial invariant of link.

Geometric Topology · Mathematics 2010-12-20 Kenji Aragane

We apply the techniques of totally twisted Khovanov homology to the constructions by M. Asaeda, J. Przytycki, and A. Sikora of Khovanov type homologies for links and tangles in I-bundles over (orientable) surfaces. As a result we describe…

Geometric Topology · Mathematics 2012-09-14 Nguyen D. Duong , Lawrence P. Roberts

We use the knot homology of Khovanov and Lee to construct link concordance invariants generalizing the Rasmussen $s$-invariant of knots. The relevant invariant for a link is a filtration on a vector space of dimension $2^{|L|}$. The basic…

Geometric Topology · Mathematics 2012-08-14 John Pardon

The purpose of this paper is to construct and study equivariant Khovanov homology - a version of Khovanov homology theory for periodic links. Since our construction works regardless of the characteristic of the coefficient ring it…

Geometric Topology · Mathematics 2020-01-28 Wojciech Politarczyk

The WRT invariant of a link L in S2xS1 at sufficiently high values of the level r can be expresses as an evaluation of a special polynomial invariant of L at 2r-th root of unity. We categorify this polynomial invariant by associating to L a…

Geometric Topology · Mathematics 2010-11-10 Lev Rozansky

Using the symplectic geometry of certain manifolds which appear naturally in Lie theory, we define an invariant which assigns a graded abelian group to an oriented link. The relevant manifolds are transverse slices to certain nilpotent…

Symplectic Geometry · Mathematics 2007-05-23 Paul Seidel , Ivan Smith

We introduce the notion of a quandle with a good involution and its homology groups. Carter et al. defined quandle cocycle invariants for oriented links and oriented surface-links. By use of good involutions, quandle cocyle invariants can…

Geometric Topology · Mathematics 2015-12-29 Seiichi Kamada , Kanako Oshiro

Khovanov defined graded homology groups for links L in R^3 and showed that their polynomial Euler characteristic is the Jones polynomial of L. Khovanov's construction does not extend in a straightforward way to links in I-bundles M over…

Quantum Algebra · Mathematics 2014-10-01 Marta M. Asaeda , Jozef H. Przytycki , Adam S. Sikora

Fixing two concordant links in $3$--space, we study the set of all embedded concordances between them, as knotted annuli in $4$--space. When regarded up to surface-concordance or link-homotopy, the set $\mathcal{C}(L)$ of concordances from…

Geometric Topology · Mathematics 2021-05-06 Jean-Baptiste Meilhan , Akira Yasuhara

The Jones polynomial is a famous link invariant that can be defined diagrammatically via a skein relation. Khovanov homology is a richer link invariant that categorifies the Jones polynomial. Using spectral sequences, we obtain a skein-type…

Geometric Topology · Mathematics 2019-12-20 Maria Chlouveraki , Dimos Goundaroulis , Aristides Kontogeorgis , Sofia Lambropoulou

Given any diagram of a link, we define on the cube of Kauffman's states a "2-complex" whose homology is an invariant of the associated framed links, and such that the graded Euler characteristic reproduces the unnormalized Kauffman bracket.…

Geometric Topology · Mathematics 2013-06-14 Alessio Carrega

To a smooth, compact, oriented, properly-embedded surface in the $4$-ball, we define an invariant of its boundary-preserving isotopy class from the Khovanov homology of its boundary link. Previous work showed that when the boundary link is…

Geometric Topology · Mathematics 2023-03-22 Isaac Sundberg , Jonah Swann

We define an invariant of transverse links in the standard contact 3-sphere as a distinguished element of the Khovanov homology of the link. The quantum grading of this invariant is the self-linking number of the link. For knots, this gives…

Geometric Topology · Mathematics 2007-05-23 Olga Plamenevskaya

M. Khovanov and L. Rozansky gave a categorification of the HOMFLY-PT polynomial. This study is a generalization of the Khovanov-Rozansky homology. We define a homology associated to the quantum $(sl_n,\land V_n)$ link invariant, where…

Geometric Topology · Mathematics 2019-02-27 Yasuyoshi Yonezawa