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In general, Lagrangian Floer homology - if well-defined - is not isomorphic to singular homology. For arbitrary closed Lagrangian submanifolds a local version of Floer homology is defined in [Flo89, Oh96] which is isomorphic to singular…

Symplectic Geometry · Mathematics 2007-05-23 Peter Albers

We survey various aspects of Floer theory and its place in modern symplectic geometry, from its introduction to address classical conjectures of Arnold about Hamiltonian diffeomorphisms and Lagrangian submanifolds, to the rich algebraic…

Symplectic Geometry · Mathematics 2025-10-28 Denis Auroux

We introduce a Heegaard-Floer homology functor from the category of oriented links in closed $3$-manifolds and oriented surface cobordisms in $4$-manifolds connecting them to the category of $\mathbb{F}[v]$-modules and…

Geometric Topology · Mathematics 2024-06-21 Eaman Eftekhary

We consider Floer homology associated to a pair of closed Lagrangian submanifolds that satisfy a monotonicty assumption. If the Lagrangians intersect cleanly we decribe two spectral sequences which help to compute their Floer homology. The…

Symplectic Geometry · Mathematics 2016-06-17 Felix Schmäschke

We provide constructions of equivariant Lagrangian Floer homology groups, by constructing and exploiting an $A_\infty$-module structure on the Floer complex.

Symplectic Geometry · Mathematics 2024-04-29 Guillem Cazassus

We construct partial category-valued field theories in (2+1)-dimensions using Lagrangian Floer theory in moduli spaces of central-curvature unitary connections with fixed determinant of rank r and degree d where r,d are coprime positive…

Symplectic Geometry · Mathematics 2018-06-27 Katrin Wehrheim , Chris Woodward

We exhibit Lerman's cutting procedure as a functor from the category of manifolds-with-boundary equipped with free circle actions near the boundary, with so-called equivariant transverse maps, to the category of manifolds and smooth maps.…

Symplectic Geometry · Mathematics 2020-11-10 Yael Karshon

We give a construction of the Floer homology of the pair of {\it non-compact} Lagrangian submanifolds, which satisfies natural continuity property under the Hamiltonian isotopy which moves the infinity but leaves the intersection set of the…

Symplectic Geometry · Mathematics 2007-05-23 Yong-Geun Oh

This is the first of two papers devoted to showing how the rich algebraic formalism of Eliashberg-Givental-Hofer's symplectic field theory (SFT) can be used to define higher algebraic structures on the symplectic cohomology of open…

Differential Geometry · Mathematics 2020-01-01 Oliver Fabert

The main purpose of the present paper is a study of orientations of the moduli spaces of pseudo-holomorphic discs with boundary lying on a \emph{real} Lagrangian submanifold, i.e., the fixed point set of an anti-symplectic involutions…

Symplectic Geometry · Mathematics 2017-02-15 Kenji Fukaya , Yong-Geun Oh , Hiroshi Ohta , Kaoru Ono

We define a class of non-compact Fano toric manifolds, called admissible toric manifolds, for which Floer theory and quantum cohomology are defined. The class includes Fano toric negative line bundles, and it allows blow-ups along fixed…

Symplectic Geometry · Mathematics 2023-12-29 Alexander F. Ritter

We construct a Floer type boundary operator for generalised Morse-Smale dynamical systems on compact smooth manifolds by counting the number of suitable flow lines between closed (both homoclinic and periodic) orbits and isolated critical…

Dynamical Systems · Mathematics 2024-12-10 Marzieh Eidi , Jürgen Jost

In this paper we first develop various enhancements of the theory of spectral invariants of Hamiltonian Floer homology and of Entovi-Polterovich theory of spectral symplectic quasi-states and quasimorphisms by incorporating \emph{bulk…

Symplectic Geometry · Mathematics 2017-01-18 Kenji Fukaya , Yong-Geun Oh , Hiroshi Ohta , Kaoru Ono

Link Floer homology is an invariant for links defined using a suitable version of Lagrangian Floer homology. In an earlier paper, this invariant was given a combinatorial description with mod 2 coefficients. In the present paper, we give a…

Geometric Topology · Mathematics 2014-11-11 Ciprian Manolescu , Peter Ozsvath , Zoltan Szabo , Dylan Thurston

We prove the Arnold-Givental conjecture for a class of Lagrangian submanifolds in Marsden-Weinstein quotients which are fixpoint sets of some antisymplectic involution. For these Lagrangians the Floer homology cannot in general be defined…

Symplectic Geometry · Mathematics 2007-05-23 Urs Frauenfelder

Using a simplified version of Kuranishi perturbation theory that we call semi-global Kuranishi structures, we give a definition of the equivariant Lagrangian Floer cohomology of a pair of Lagrangian submanifolds that are fixed under a…

Symplectic Geometry · Mathematics 2021-08-25 Erkao Bao , Ko Honda

Fixing a weakly unobstructed Lagrangian torus in a symplectic manifold X, we define a holomorphic function W known as the Floer potential. We construct a canonical A-infinity functor from the Fukaya category of X to the category of matrix…

Symplectic Geometry · Mathematics 2016-10-03 Cheol-Hyun Cho , Hansol Hong , Siu-Cheong Lau

Liouville domains are a special type of symplectic manifolds with boundary (they have an everywhere defined Liouville flow, pointing outwards along the boundary). Symplectic cohomology for Liouville domains was introduced by…

Symplectic Geometry · Mathematics 2014-11-11 Mohammed Abouzaid , Paul Seidel

We define Floer homology for a time-independent, or autonomous Hamiltonian on a symplectic manifold with contact type boundary, under the assumption that its 1-periodic orbits are transversally nondegenerate. Our construction is based on…

Symplectic Geometry · Mathematics 2008-04-30 Frédéric Bourgeois , Alexandru Oancea

Let $R$ be a commutative ring spectrum. We construct the wrapped Donaldson--Fukaya category with coefficients in $R$ of any stably polarized Liouville sector. We show that any two $R$-orientable and isomorphic objects admit $R$-orientations…

Symplectic Geometry · Mathematics 2025-10-02 Johan Asplund , Yash Deshmukh , Alex Pieloch
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