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We study a module structure on Khovanov homology, which we show is natural under the Ozsvath-Szabo spectral sequence to the Floer homology of the branched double cover. As an application, we show that this module structure detects trivial…

Geometric Topology · Mathematics 2014-11-11 Matthew Hedden , Yi Ni

This paper extends the definition of Rabinowitz Floer homology to non-compact hypersurfaces. We present a general framework for the construction of Rabinowitz Floer homology in the non-compact setting under suitable compactness assumptions…

Symplectic Geometry · Mathematics 2020-06-18 Federica Pasquotto , Robert Vandervorst , Jagna Wiśniewska

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

This largely technical paper is divided into two parts: part I: An account of P. Ozsvath and Z. Szabo's construction of the link surgery spectral sequence. There are no new results here, but this part slightly modifies and expands their…

Geometric Topology · Mathematics 2008-08-22 Lawrence Roberts

We construct connections on $S^1$-equivariant Hamiltonian Floer cohomology, which differentiate with respect to certain formal parameters.

Symplectic Geometry · Mathematics 2018-01-15 Paul Seidel

In "Homfly polynomial via an invariant of colored plane graphs", Murakami, Ohtsuki, and Yamada provide a state-sum description of the level $n$ Jones polynomial of an oriented link in terms of a suitable braided monoidal category whose…

Geometric Topology · Mathematics 2024-07-16 Domenico Fiorenza , Omid Hurson

Li-Xie-Zhang classified instanton Floer minimal knots in balanced sutured manifolds subject to a condition on the fundamental group. In this paper, we give a similar classification in the Heegaard Floer homology setting. Since our…

Geometric Topology · Mathematics 2025-05-27 Fraser Binns

In this paper, we define grid homologies for singular links in lens spaces and use them to construct a resolution cube for knot Floer homology of regular links in lens spaces. The results will first be proved over $\mathbb{Z}/2\mathbb{Z}$…

Geometric Topology · Mathematics 2025-03-28 Yonghan Xiao

We define an integer graded symplectic Floer cohomology and a Fintushel-Stern type spectral sequence which are new invariants for monotone Lagrangian sub-manifolds and exact isotopes. The Z-graded symplectic Floer cohomology is an integral…

Geometric Topology · Mathematics 2014-10-01 Weiping Li

In this paper we study the knot Floer homology invariants of the twisted and untwisted Whitehead doubles of an arbitrary knot K. We present a formula for the filtered chain homotopy type of HFK(D(+,K,t)) in terms of the invariants for K,…

Geometric Topology · Mathematics 2014-11-11 Matthew Hedden

We sketch the proof of the equivalence between the hat versions of Heegaard Floer homology and embedded contact homology. The key point is to express these two Floer homology theories in terms of an open book decomposition of the ambient…

Symplectic Geometry · Mathematics 2011-03-08 Vincent Colin , Paolo Ghiggini , Ko Honda

We define several concordance invariants using knot Floer homology which give improvements over known slice genus and clasp number bounds from Heegaard Floer homology. We also prove that the involutive correction terms of Hendricks and…

Geometric Topology · Mathematics 2020-10-06 András Juhász , Ian Zemke

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

We establish inequalities that constrain the genera of smooth cobordisms between knots in 4-dimensional cobordisms. These "relative adjunction inequalities" improve the adjunction inequalities for closed surfaces which have been…

Geometric Topology · Mathematics 2021-08-10 Matthew Hedden , Katherine Raoux

We define a version of spectral invariant in the vortex Floer theory for a $G$-Hamiltonian manifold $M$. This defines potentially new (partial) symplectic quasi-morphism and quasi-states when $M//G$ is not semi-positive. We also establish a…

Symplectic Geometry · Mathematics 2018-06-19 Weiwei Wu , Guangbo Xu

In a previous paper, V\'ertesi and the first author used grid-like Heegaard diagrams to define tangle Floer homology, which associates to a tangle $T$ a differential graded bimodule $\widetilde{\mathrm{CT}} (T)$. If $L$ is obtained by…

Geometric Topology · Mathematics 2023-03-14 Ina Petkova , C. -M. Michael Wong

We develop a family of deformations of the differential and of the pair-of-pants product on the Hamiltonian Floer complex of a symplectic manifold (M,\omega) which upon passing to homology yields ring isomorphisms with the big quantum…

Symplectic Geometry · Mathematics 2014-11-11 Michael Usher

Extending ideas of Hedden-Ni, we show that the module structure on Khovanov homology detects split links. We also prove an analogue for untwisted Heegaard Floer homology of the branched double cover. Technical results proved along the way…

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

We give an explicit construction of the Honda--Kazez--Mati\'c gluing maps in terms of contact handles. We use this to prove a duality result for turning a sutured manifold cobordism around, and to compute the trace in the sutured Floer…

Geometric Topology · Mathematics 2020-04-01 András Juhász , Ian Zemke

To a link L in the 3-sphere, we associate a spectral sequence whose E^2 page is the reduced Khovanov homology of L and which converges to a version of the monopole Floer homology of the branched double cover. The pages E^k for k > 1 depend…

Geometric Topology · Mathematics 2009-11-20 Jonathan M. Bloom
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