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In this note, we introduce a relative (or Lagrangian) version of the Seidel homomorphism that assigns to each homotopy class of paths in Ham(M), starting at the identity and ending on the subgroup that preserves a given Lagrangian…

Symplectic Geometry · Mathematics 2009-04-03 Shengda Hu , Francois Lalonde

We construct a spectral sequence converging to symplectic homology of a Lefschetz fibration whose E1 page is related to Floer homology of the monodromy symplectomorphism and its iterates. We use this to show the existence of fixed points of…

Symplectic Geometry · Mathematics 2011-09-22 Mark McLean

We study the Floer cohomology of the Dehn twist along a real Lagrangian sphere in a symplectic manifold endowed with an anti-symplectic involution. We prove that there exists a distinguished element in the Floer group that is a fixed point…

Symplectic Geometry · Mathematics 2023-03-08 Patricia Dietzsch

We define $S^1$-equivariant symplectic homology for symplectically aspherical manifolds with contact boundary, using a Floer-type construction first proposed by Viterbo. We show that it is related to the usual symplectic homology by a Gysin…

Symplectic Geometry · Mathematics 2013-12-23 Frédéric Bourgeois , Alexandru Oancea

We give new obstructions to the module structures arising in Heegaard Floer homology. As a corollary, we characterize the possible modules arising as the Heegaard Floer homology of an integer homology sphere with one-dimensional reduced…

Geometric Topology · Mathematics 2017-08-01 Jonathan Hanselman , Cagatay Kutluhan , Tye Lidman

For any three-manifold presented as surgery on a framed link (L,\Lambda) in an integral homology sphere, Manolescu and Ozsv\'ath construct a hypercube of chain complexes whose homology calculates the Heegaard Floer homology of…

Geometric Topology · Mathematics 2011-09-20 Tye Lidman

We establish a link between symplectic topology and a recently emerged branch of functional analysis called the theory of quasi-states and quasi-measures. In the symplectic context quasi-states can be viewed as an algebraic way of packaging…

Symplectic Geometry · Mathematics 2007-05-23 Michael Entov , Leonid Polterovich

Floer theory relates the dynamics of Hamiltonian isotopies and the homology of the ambient manifold. It was extended to similarly relate the dynamics of symplectic isotopies and the Novikov homology associated to their flux. We discuss this…

Symplectic Geometry · Mathematics 2021-11-12 Jean-François Barraud , Agnès Gadbled

We establish a new version of Floer homology for monotone Lagrangian submanifolds and apply it to prove the following (generalized) version of Audin's conjecture : if $L$ is an aspherical manifold which admits a monotone Lagrangian…

Symplectic Geometry · Mathematics 2010-06-18 Mihai Damian

We calculate the Heegaard Floer homologies$HF^+(M,s) for mapping tori M associated to certain surface diffeomorphisms, where s is any Spin^c structure on M whose first Chern class is non-torsion. Let gamma and delta be a pair of…

Geometric Topology · Mathematics 2014-10-01 Stanislav Jabuka , Thomas Mark

We study the heat flow in the loop space of a closed Riemannian manifold $M$ as an adiabatic limit of the Floer equations in the cotangent bundle. Our main application is a proof that the Floer homology of the cotangent bundle, for the…

Symplectic Geometry · Mathematics 2014-02-10 Dietmar A. Salamon , Joa Weber

This is a survey article about knot Floer homology. We present three constructions of this invariant: the original one using holomorphic disks, a combinatorial description using grid diagrams, and a combinatorial description in terms of the…

Geometric Topology · Mathematics 2016-03-18 Ciprian Manolescu

Ideas of Fukaya and Kontsevich-Soibelman suggest that one can use Strominger-Yau-Zaslow's geometric approach to mirror symmetry as a torus duality to construct the mirror of a symplectic manifold equipped with a Lagrangian torus fibration…

Symplectic Geometry · Mathematics 2014-04-11 Mohammed Abouzaid

For G a Lie group acting on a symplectic manifold $(M,\omega)$ preserving a pair of Lagrangians $L_0$, $L_1$, under certain hypotheses not including equivariant transversality we construct a G-equivariant Floer cohomology of $L_0$ and…

Symplectic Geometry · Mathematics 2021-11-09 Kristen Hendricks , Robert Lipshitz , Sucharit Sarkar

We use closed geodesics to construct and compute Bott-type Morse homology groups for the energy functional on the loop space of flat $n$-dimensional tori, $n\ge 1$, and Bott-type Floer cohomology groups for their cotangent bundles equipped…

dg-ga · Mathematics 2008-02-03 Joa Weber

A complete embedding is a symplectic embedding $\iota:Y\to M$ of a geometrically bounded symplectic manifold $Y$ into another geometrically bounded symplectic manifold $M$ of the same dimension. When $Y$ satisfies an additional finiteness…

Symplectic Geometry · Mathematics 2023-01-25 Yoel Groman , Umut Varolgunes

In this expository article, we present the proof of the invariance of the wrapped Floer homology under the subcritical handle attachment. This is proved by Irie. Here, we fix a minor gap in the proof about the choice of a cofinal family of…

Symplectic Geometry · Mathematics 2025-08-01 Filip Broćić

This paper realises the Khovanov homology of a link in the 3-sphere as a Lagrangian Floer cohomology group, establishing a conjecture of Seidel and the second author. The starting point is the previously established formality theorem for…

Symplectic Geometry · Mathematics 2018-05-22 Mohammed Abouzaid , Ivan Smith

In a previous paper, the author introduced a Floer-theoretic torsion invariant I_F, which roughly takes the form of a product of a power series counting perturbed pseudo-holomorphic tori, and the Reidemeister torsion of the symplectic Floer…

Symplectic Geometry · Mathematics 2007-05-23 Yi-Jen Lee

This is the third paper of this series. In \cite{Wang20}, we defined the monopole Floer homology for any pair $(Y,\omega)$, where $Y$ is a compact oriented 3-manifold with toroidal boundary and $\omega$ is a suitable closed 2-form viewed as…

Geometric Topology · Mathematics 2023-01-11 Donghao Wang