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A handlebody-knot is a handlebody embedded in the 3-sphere. We establish a uniform method to construct invariants for handlebody-links. We introduce the category $\mathcal{T}$ of handlebody-tangles and present it by generators and…

Geometric Topology · Mathematics 2013-07-23 Atsushi Ishii , Akira Masuoka

Quantum phases can be classified by topological invariants, which take on discrete values capturing global information about the quantum state. Over the past decades, these invariants have come to play a central role in describing matter,…

An invariant $\mu_{\alpha}(K)$ of fibred knots $K$ in a homology sphere is defined for each $\alpha \in {\bold S}{\bold U}_n$ as follows. Since the knot is fibred, the knot complement is described by an element of the mapping class group,…

q-alg · Mathematics 2016-09-08 H. U. Boden

We calculate the knot invariant coming from the Teichm\"{u}ller TQFT [AK1]. Specifically we calculate the knot invariant for the complement of the knot $6_1$ both in the original [AK1] and the new formulation of the Teichm\"{u}ller TQFT…

Geometric Topology · Mathematics 2016-12-22 Jørgen Ellegaard Andersen , Jens-Jakob Kratmann Nissen

Suppose that L is a null--homologous Legendrian knot in a contact 3--manifold. We determine the connection between the sutured invariant of the complement of L and the Legendrian invariant defined by Lisca, Ozsvath, Stipsicz and Szabo. In…

Symplectic Geometry · Mathematics 2008-12-30 Andras I. Stipsicz , Vera Vertesi

Updated rerefences and introduction. Given a knot in an integer homology sphere, one can construct a family of closed 3-manifolds (parametrized by the positive integers), namely the cyclic branched coverings of the knot. In this paper we…

Geometric Topology · Mathematics 2007-05-23 Stavros Garoufalidis , Andrew Kricker

In this paper a classification of Reidemeister moves, which is the most refined, is introduced. In particular, this classification distinguishes some $\Omega_3$-moves that only differ in how the three strands that are involved in the move…

Geometric Topology · Mathematics 2016-09-07 Olof-Petter OEstlund

Ozsvath and Szabo gave a combinatorial description of knot Floer homology based on a cube of resolutions, which uses maps with twisted coefficients. We study the t=1 specialization of their construction. The associated spectral sequence…

Geometric Topology · Mathematics 2014-02-07 Ciprian Manolescu

We show that an infinite family of contractible 4-manifolds have the same boundary as a special type of plumbing. Consequently their Ozsvath--Szabo invariants can be calculated algorithmically. We run this algorithm for the first few…

Geometric Topology · Mathematics 2015-01-23 Selman Akbulut , Cagri Karakurt

Using a Heegaard diagram for the pullback of a knot $K \subset S^3$ in its cyclic branched cover $\Sigma_m(K)$ obtained from a grid diagram for $K$, we give a combinatorial proof for the invariance of the associated combinatorial knot Floer…

Geometric Topology · Mathematics 2018-05-01 Fatemeh Douroudian , Iman Setayesh

We define a link homology theory that is readily seen to be both isomorphic to reduced odd Khovanov homology and fully determined by data impervious to Conway mutation. This gives an elementary proof that odd Khovanov homology is mutation…

Geometric Topology · Mathematics 2009-03-27 Jonathan Bloom

We give combinatorial descriptions of the Heegaard Floer homology groups for arbitrary three-manifolds (with coefficients in Z/2). The descriptions are based on presenting the three-manifold as an integer surgery on a link in the…

Geometric Topology · Mathematics 2020-07-02 Ciprian Manolescu , Peter Ozsvath , Dylan Thurston

We prove that the knot invariant induced by a $\Bbb Z$-homology 3-sphere invariant of order $\leq k$ in Ohtsuki's sense, where $k\geq 4$, is of order $\leq k-2$. The method developed in our computation shows that there is no $\Bbb…

q-alg · Mathematics 2008-02-03 Matt Greenwood , Xiao-Song Lin

For certain classes of knots we define geometric invariants called higher-order genera. Each of these invariants is a refinement of the slice genus of a knot. We find lower bounds for the higher-order genera in terms of certain von Neumann…

Geometric Topology · Mathematics 2010-06-03 Peter D. Horn

In ``Knots in lattice homology", Ozsv\'ath, Stipsicz, and Szab\'o showed that knot lattice homology satisfies a surgery formula similar to the one relating knot Floer homology and Heegaard Floer homology, and in previous work, I showed that…

Geometric Topology · Mathematics 2024-07-23 Seppo Niemi-Colvin

We define a "reduced" version of the knot Floer complex $CFK^-(K)$, and show that it behaves well under connected sums and retains enough information to compute Heegaard Floer $d$-invariants of manifolds arising as surgeries on the knot…

Geometric Topology · Mathematics 2015-09-04 David Krcatovich

When $\mathbf{k}$ is a field, type D structures over the algebra $\mathbf{k}[u,v]/(uv)$ are equivalent to immersed curves decorated with local systems in the twice-punctured disk. Consequently, knot Floer homology, as a type D structure…

Geometric Topology · Mathematics 2023-09-13 Artem Kotelskiy , Liam Watson , Claudius Zibrowius

We consider the construction of refined Chern-Simons torus knot invariants by M. Aganagic and S. Shakirov from the DAHA viewpoint of I. Cherednik. We give a proof of Cherednik's conjecture on the stabilization of superpolynomials, and then…

Representation Theory · Mathematics 2015-08-13 Eugene Gorsky , Andrei Neguţ

A framework for studying knot and link invariants from any rational conformal field theory is developed. In particular, minimal models, superconformal models and $W_N$ models are studied. The invariants are related to the invariants…

High Energy Physics - Theory · Physics 2009-10-22 P. Ramadevi , T. R. Govindarajan , R. K. Kaul

We construct geometrically two universal link invariants: universal ADO invariant and universal Jones invariant, as limits of invariants given by graded intersections in configuration spaces. More specifically, for a fixed level $\mathscr…

Geometric Topology · Mathematics 2025-12-09 Cristina Ana-Maria Anghel
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