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Related papers: Sutured ECH is a natural invariant

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We show that contact homology distinguishes infinitely many tight contact structures on any orientable, toroidal, irreducible 3-manifold. As a consequence of the contact homology computations, on a very large class of toroidal manifolds,…

Geometric Topology · Mathematics 2014-11-11 Frederic Bourgeois , Vincent Colin

Various Seiberg-Witten Floer cohomologies are defined for a closed, oriented 3-manifold; and if it is the mapping torus of an area-preserving surface automorphism, it has an associated periodic Floer homology as defined by Michael…

Geometric Topology · Mathematics 2011-05-24 Yi-Jen Lee , Clifford Henry Taubes

We summarize recent work on a combinatorial knot invariant called knot contact homology. We also discuss the origins of this invariant in symplectic topology, via holomorphic curves and a conormal bundle naturally associated to the knot.

Symplectic Geometry · Mathematics 2009-03-13 Lenhard Ng

In an earlier paper (math.SG/0101206), we introduced Floer homology theories associated to closed, oriented three-manifolds Y and SpinC structures. In the present paper, we give calculations and study the properties of these invariants. The…

Symplectic Geometry · Mathematics 2007-05-23 Peter Ozsvath , Zoltan Szabo

This is a companion paper to an earlier work of the authors. In this paper, we provide an axiomatic definition of Floer homology for balanced sutured manifolds and prove that the graded Euler characteristic $\chi_{\rm gr}$ of this homology…

Geometric Topology · Mathematics 2024-05-28 Zhenkun Li , Fan Ye

We prove a compactness theorem for holomorphic curves in 4-dimensional symplectizations that have embedded projections to the underlying 3-manifold. It strengthens the cylindrical case of the SFT compactness theorem by using intersection…

Symplectic Geometry · Mathematics 2008-03-07 Chris Wendl

The 2011 PhD thesis of Farris demonstrated that the ECH of a prequantization bundle over a Riemann surface is isomorphic as a Z/2Z-graded group to the exterior algebra of the homology of its base. We extend this result by computing the…

Symplectic Geometry · Mathematics 2024-05-22 Jo Nelson , Morgan Weiler

We obtain new invariants of topological link concordance and homology cobordism of 3-manifolds from Hirzebruch-type intersection form defects of towers of iterated p-covers. Our invariants can extract geometric information from an arbitrary…

Geometric Topology · Mathematics 2008-06-16 Jae Choon Cha

Cylindrical contact homology is a comparatively simple incarnation of symplectic field theory whose existence and invariance under suitable hypotheses was recently established by Hutchings and Nelson. We study this invariant for a general…

Symplectic Geometry · Mathematics 2022-05-04 Sebastian Haney , Thomas E. Mark

We formulate a very general conjecture relating the analytical invariants of a normal surface singularity to the Seiberg-Witten invariants of its link provided that the link is a rational homology sphere. As supporting evidence, we…

Algebraic Geometry · Mathematics 2014-11-11 Andras Nemethi , Liviu I Nicolaescu

The ECH capacities are a sequence of numerical invariants of symplectic four-manifolds which give (sometimes sharp) obstructions to symplectic embeddings. These capacities are defined using embedded contact homology, and establishing their…

Symplectic Geometry · Mathematics 2022-10-12 Michael Hutchings

We give a necessary and sufficient criterion for a sutured manifold to be taut in terms of the twisted homology of the sutured manifold.

Geometric Topology · Mathematics 2012-09-06 Stefan Friedl , Taehee Kim

We study a notion of strict pseudoconvexity in the context of topologically (often unsmoothably) embedded 3-manifolds in complex surfaces. Topologically pseudoconvex (TPC) 3-manifolds behave similarly to their smooth analogues, cutting out…

Geometric Topology · Mathematics 2023-04-18 Robert E. Gompf

We define a torsion invariant T for every balanced sutured manifold (M,g), and show that it agrees with the Euler characteristic of sutured Floer homology SFH. The invariant T is easily computed using Fox calculus. With the help of T, we…

Geometric Topology · Mathematics 2012-07-11 Stefan Friedl , András Juhász , Jacob Rasmussen

We define an invariant of contact structures in dimension three from Heegaard Floer homology. This invariant takes values in the set $\mathbb{Z}_{\geq0}\cup\{\infty\}$. It is zero for overtwisted contact structures, $\infty$ for Stein…

Geometric Topology · Mathematics 2019-05-08 Cagatay Kutluhan , Gordana Matic , Jeremy Van Horn-Morris , Andy Wand

We prove that on any closed Riemannian three-manifold $(M,g)$ the time-dependent Euler equations are non-mixing on the space of smooth volume-preserving vector fields endowed with the $C^1$-topology, for any fixed helicity and large enough…

Dynamical Systems · Mathematics 2024-01-31 Robert Cardona , Francisco Torres de Lizaur

We prove first-order naturality of involutive Heegaard Floer homology, and furthermore construct well-defined maps on involutive Heegaard Floer homology associated to cobordisms between three-manifolds. We also prove analogous naturality…

Geometric Topology · Mathematics 2025-07-04 Kristen Hendricks , Jennifer Hom , Matthew Stoffregen , Ian Zemke

This is the second of five papers that construct an isomorphism between the Seiberg-Witten Floer homology and the Heegaard Floer homology of a given compact, oriented 3-manifold. The isomorphism is given as a composition of three…

Geometric Topology · Mathematics 2021-01-06 Cagatay Kutluhan , Yi-Jen Lee , Clifford Henry Taubes

Sutured manifolds defined by Gabai are useful in the geometrical study of knots and 3-dimensional manifolds. On the other hand, homology cylinders are in an important position in the recent theory of homology cobordisms of surfaces and…

Geometric Topology · Mathematics 2013-07-25 Hiroshi Goda , Takuya Sakasai

Using the knot Floer homology filtration, we define invariants associated to a knot in a three-manifold possessing non-vanishing Floer co(homology) classes. In the case of the Ozsvath-Szabo contact invariant we obtain an invariant of knots…

Geometric Topology · Mathematics 2007-08-06 Matthew Hedden