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Given a compact connected Lie group G endowed with root datum, and an element w in the corresponding Artin braid group for G, we describe a filtered G-equivariant stable homotopy type, up to a notion of quasi-equivalence. We call this…

Algebraic Topology · Mathematics 2023-09-08 Nitu Kitchloo

We prove that Khovanov homology with Z/2-coefficients detects the link L7n1, and the union of a trefoil and its meridian.

Geometric Topology · Mathematics 2020-05-13 Zhenkun Li , Yi Xie , Boyu Zhang

We prove that the reduced 2-coloured Khovanov homology detects the trefoil, using a spectral sequence to knot Floer homology.

Geometric Topology · Mathematics 2018-09-05 George Robinson

We prove that, for a link $L$ in a rational homology 3--sphere, the link Floer homology detects the Thurston norm of its complement. This generalizes the previous results due to Ozsv\'ath, Szab\'o and the author.

Geometric Topology · Mathematics 2014-11-11 Yi Ni

Link Floer homology is an invariant for links which has recently been described entirely in a combinatorial way. Originally constructed with mod 2 coefficients, it was generalized to integer coefficients thanks to a sign refinement. In this…

Geometric Topology · Mathematics 2014-10-01 Étienne Gallais

We define the universal sl3-link homology, which depends on 3 parameters, following Khovanov's approach with foams. We show that this 3-parameter link homology, when taken with complex coefficients, can be divided into 3 isomorphism…

Geometric Topology · Mathematics 2014-10-01 Marco Mackaay , Pedro Vaz

We show if $L$ is any link in $S^3$ whose Khovanov homology is isomorphic to the Khovanov homology of $T(2,6)$ then $L$ is isotopic to $T(2,6)$. We show this for unreduced Khovanov homology with $\mathbb{Z}$ coefficients.

Geometric Topology · Mathematics 2020-05-07 Gage Martin

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

There exists a simplified Bar-Natan Khovanov complex for open 2-braids. The Khovanov cohomology of a knot diagram made by gluing tangles of this type is therefore often amenable to calculation. We lift this idea to the level of the…

Geometric Topology · Mathematics 2015-06-26 Dan Jones , Andrew Lobb , Dirk Schuetz

We construct a spectral sequence relating the Khovanov homology of a strongly invertible knot to the annular Khovanov homologies of the two natural quotient knots. Using this spectral sequence, we re-prove that Khovanov homology…

Geometric Topology · Mathematics 2025-07-08 Robert Lipshitz , Sucharit Sarkar

We propose a framework for unifying the sl(N) Khovanov-Rozansky homology (for all N) with the knot Floer homology. We argue that this unification should be accomplished by a triply graded homology theory which categorifies the HOMFLY…

Geometric Topology · Mathematics 2007-11-06 Nathan M. Dunfield , Sergei Gukov , Jacob Rasmussen

Let L be a link in an thickened annulus. We specify the embedding of this annulus in the three sphere, and consider its complement thought of as the axis to L. In the right circumstances this axis lifts to a null-homologous knot in the…

Geometric Topology · Mathematics 2014-11-11 Lawrence P. Roberts

We show a spectral sequence for the rational Khovanov homology of an oriented link in terms of the rational Khovanov complexes and homologies of the link surgeries along an admissible cut. As a non trivial corollary, we give an explicit…

Geometric Topology · Mathematics 2017-11-07 Juan Manuel Burgos

We define a new combinatorial complex computing the hat version of link Floer homology over Z/2Z, which turns out to be significantly smaller than the Manolescu-Ozsvath-Sarkar one.

Geometric Topology · Mathematics 2014-04-14 Anna Beliakova

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

We establish a direct map between refined topological vertex and sl(N) homological invariants of the of Hopf link, which include Khovanov-Rozansky homology as a special case. This relation provides an exact answer for homological invariants…

High Energy Physics - Theory · Physics 2014-11-18 Sergei Gukov , Amer Iqbal , Can Kozcaz , Cumrun Vafa

We partially solve the conjecture by A.Shumakovitch about torsion in the Khovanov homology of prime, non-split links in S^3. We give a size restriction on the Khovanov homology of almost alternating links. We relate the Khovanov homology of…

Geometric Topology · Mathematics 2007-05-23 Marta M. Asaeda , Jozef H. Przytycki

For any link of two components in an integral homology sphere, we define an instanton Floer homology whose Euler characteristic is the linking number between the components of the link. We relate this Floer homology to the Kronheimer-Mrowka…

Geometric Topology · Mathematics 2011-09-27 Eric Harper , Nikolai Saveliev

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

We define a homological action on sutured instanton Floer homology. This action is well-defined up to scalars, and behaves well under connected sums and sutured manifold decompositions. As an application, we show that instanton knot…

Geometric Topology · Mathematics 2023-07-03 Hongjian Yang