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Related papers: Khovanov homology and Rasmussen's s-invariants for…

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We compute the reduced Khovanov homology of 3-stranded pretzel links. The coefficients are the integers with the "even" sign assignment. In particular, we show that the only homologically thin, non-quasi-alternating 3-stranded pretzels are…

Geometric Topology · Mathematics 2018-11-29 Andrew Manion

In a previous paper by the authors, we found some patterns in link diagrams that give rise to torsion elements of order two in their Khovanov homology. In this paper we extend these results by providing new torsion patterns. Many of the…

Geometric Topology · Mathematics 2025-08-04 Raquel Díaz , Pedro M. G. Manchón

Asaeda-Przytycki-Sikora, Manturov, and Gabrov\v{s}ek extended Khovanov homology to links in $\mathbb{RP}^3$. We construct a Lee-type deformation of their theory, and use it to define an analogue of Rasmussen's s-invariant in this setting.…

Geometric Topology · Mathematics 2024-11-20 Ciprian Manolescu , Michael Willis

We review Bennequin type inequalities established using various versions of the Khovanov-Rozansky cohomology. Then we give a new proof of a Bennequin type inequality established by the author, and derive new Bennequin type inequalities for…

Geometric Topology · Mathematics 2007-05-23 Hao Wu

We compute the involutive knot invariants for pretzel knots of the form P(-2,m,n) for m and n odd and greater than or equal to 3.

Geometric Topology · Mathematics 2022-06-15 Kristen Hendricks , Matthew Issac , Nicholas McConnell

The stable Khovanov-Rozansky homology of torus knots has been conjecturally described as the Koszul homology of an explicit non-regular sequence of polynomials. We verify this conjecture against newly available computational data for…

Geometric Topology · Mathematics 2018-10-16 Eugene Gorsky , Lukas Lewark

We compute Vassiliev invariants up to order six for arbitrary pretzel knots, which depend on $g+1$ parameters $n_1,\ldots,n_{g+1}$. These invariants are symmetric polynomials in $n_1,\ldots,n_{g+1}$ whose degree coincide with their order.…

High Energy Physics - Theory · Physics 2016-10-12 A. Sleptsov

Polynomial invariants constitute a dynamic and essential area of study in the mathematical theory of knots. From the pioneer Alexander polynomial, the revolutionary Jones polynomial, to the collectively discovered HOMFLYPT polynomial, just…

Geometric Topology · Mathematics 2024-12-31 Alan Hernandez-Flores , Gabriel Montoya-Vega

By means of Rasmussen's formulation of Khovanov-Rozansky homology originally given over $\mathbb{Q}$ in arXiv:math/0607544, we compare different flavors of $\mathfrak{sl}(n)$ link homology with the link invariants obtained by Kitchloo in…

Algebraic Topology · Mathematics 2024-09-06 Tomas Mejia-Gomez

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

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

This paper studies knots in three dimensional projective space. Our technique is to associate a virtual link to a link in projective space so that equivalent projective links go to equivalent virtual links (modulo a special flype move). We…

Geometric Topology · Mathematics 2025-11-11 Louis H. Kauffman , Rama Mishra , Visakh Narayanan

We introduce and explore the relation between knot invariants and quiver representation theory, which follows from the identification of quiver quantum mechanics in D-brane systems representing knots. We identify various structural…

High Energy Physics - Theory · Physics 2020-05-29 Piotr Kucharski , Markus Reineke , Marko Stosic , Piotr Sułkowski

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 remind the method to calculate colored Jones polynomials for the plat representations of knot diagrams from the knowledge of modular transformation (monodromies) of Virasoro conformal blocks with insertions of degenerate fields. As an…

High Energy Physics - Theory · Physics 2015-08-18 D. Galakhov , D. Melnikov , A. Mironov , A. Morozov

We prove formulae for the $\mathbb{F}_2$-Rasmussen invariant of satellite knots of patterns with wrapping number 2, using the multicurve technology for Khovanov and Bar-Natan homology developed by Kotelskiy, Watson, and the second author. A…

Geometric Topology · Mathematics 2025-10-01 Lukas Lewark , Claudius Zibrowius

We show that the order of torsion homology classes in Bar-Natan deformation of Khovanov homology is a lower bound for the unknotting number. We give examples of knots that this is a better lower bound than |s(K)/2|, where s(K) is the…

Geometric Topology · Mathematics 2019-09-18 Akram Alishahi

We construct explicitly the Khovanov homology theory for virtual links with arbitrary coefficients by using the twisted coefficients method. This method also works for constructing Khovanov homology for ``non-oriented virtual knots'' in the…

Geometric Topology · Mathematics 2007-05-23 Vassily Olegovich Manturov

We give a simple recursion which computes the triply graded Khovanov-Rozansky homology of several infinite families of knots and links, including the $(n,nm\pm 1)$ and $(n,nm)$ torus links for $n,m\geq 1$. We interpret our results in terms…

Geometric Topology · Mathematics 2017-04-06 Matthew Hogancamp

We give a necessary, and in some cases sufficient, condition for sliceness inside the family of pretzel knots $P (p_1,...,p_n)$ with one $p_i$ even. The three stranded case yields two interesting families of examples: the first consists of…

Geometric Topology · Mathematics 2016-01-20 Ana G. Lecuona