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We prove a generalization of the Conley conjecture: Every Hamiltonian diffeomorphism of a closed symplectic manifold has infinitely many periodic orbits if the first Chern class vanishes over the second fundamental group. In particular, we…

Symplectic Geometry · Mathematics 2012-08-07 Doris Hein

We formulate a constructive theory of noncommutative Landau-Ginzburg models mirror to symplectic manifolds based on Lagrangian Floer theory. The construction comes with a natural functor from the Fukaya category to the category of matrix…

Algebraic Geometry · Mathematics 2021-09-07 Cheol-Hyun Cho , Hansol Hong , Siu-Cheong Lau

Some functorial properties are studied for the H\"{o}rmander classes defined for symplectic bundles. The behaviour of the Chern first form on a Lagrangian submanifold in an almost Hermitian manifold is also studied, and Fomenko's conjecture…

Symplectic Geometry · Mathematics 2007-05-23 Z. Tevdoradze

We show that blow-ups or reverse flips (in the sense of the minimal model program) of rational symplectic manifolds with point centers create Floer-non-trivial Lagrangian tori. As applications, we demonstrate the existence of Hamiltonian…

Symplectic Geometry · Mathematics 2022-07-21 François Charest , Chris T. Woodward

We study holomorphic discs with boundary on a Lagrangian submanifold $L$ in a Kaehler manifold admitting a Hamiltonian action of a group $K$ which has $L$ as an orbit. We prove various transversality and classification results for such…

Symplectic Geometry · Mathematics 2014-11-20 Jonathan David Evans , Yanki Lekili

We construct a functor from the category of oriented tangles in R^3 to the category of Hermitian modules and Lagrangian relations over Z[t,t^{-1}]. This functor extends the Burau representations of the braid groups and its generalization to…

Geometric Topology · Mathematics 2012-08-09 David Cimasoni , Vladimir Turaev

We outline a proposal for a $2$-category $\mathrm{Fuet}_M$ associated to a hyperk\"ahler manifold $M$, which categorifies the subcategory of the Fukaya category of $M$ generated by complex Lagrangians. Morphisms in this $2$-category are…

Symplectic Geometry · Mathematics 2023-08-23 Aleksander Doan , Semon Rezchikov

We extend the Cohen-Jones-Segal construction of stable homotopy types associated to flow categories of Morse-Smale functions $f$ to the setting where $f$ is equivariant under a finite group action and is Morse but no longer Morse-Smale.…

Symplectic Geometry · Mathematics 2024-05-29 Semon Rezchikov

A symplectic manifold gives rise to a triangulated A-infinity category, the derived Fukaya category, which encodes information on Lagrangian submanifolds and dynamics as probed by Floer cohomology. This survey aims to give some insight into…

Symplectic Geometry · Mathematics 2014-09-09 Ivan Smith

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

In principle, Floer theory can be extended to define homotopy invariants of families of equivalent objects (e.g. Hamiltonian isotopic symplectomorphisms, 3-manifolds, Legendrian knots, etc.) parametrized by a smooth manifold B. The…

Symplectic Geometry · Mathematics 2014-10-01 Michael Hutchings

Let $M$ be a closed symplectic manifold and $L \subset M$ a Lagrangian submanifold. Denote by $[L]$ the homology class induced by $L$ viewed as a class in the quantum homology of $M$. The present paper is concerned with properties and…

Symplectic Geometry · Mathematics 2015-02-10 Paul Biran , Cedric Membrez

We derive constraints on Lagrangian embeddings in completions of certain stable symplectic fillings with semisimple symplectic cohomologies. Manifolds with these properties can be constructed by generalizing the boundary connected sum…

Symplectic Geometry · Mathematics 2020-11-11 Yin Li

This is the third paper in a series of papers studying intersection Floer theory of Lagrangians in the complement of a smooth divisor. We complete the construction of Floer homology for such Lagrangians.

Symplectic Geometry · Mathematics 2022-11-07 Aliakbar Daemi , Kenji Fukaya

We define and investigate spectral invariants for Floer homology $HF(H,U:M)$ of an open subset $U\subset M$ in $T^*M$, defined by Kasturirangan and Oh as a direct limit of Floer homologies of approximations. We define a module structure…

Symplectic Geometry · Mathematics 2017-01-20 Jelena Katić , Darko Milinković , Jovana Nikolić

This article provides the first extension of Lagrangian Intersection Floer cohomology to Poisson structures which are almost everywhere symplectic, but degenerate on a lowerdimensional submanifold. The main result of the article is the…

Symplectic Geometry · Mathematics 2025-01-08 Charlotte Kirchhoff-Lukat

Given a Lagrangian submanifold in a symplectic manifold and a Morse function on the submanifold, we show that there is an isotopic Morse function and a symplectic Lefschetz pencil on the manifold extending the Morse function to the whole…

Symplectic Geometry · Mathematics 2007-05-23 Denis Auroux , Vicente Muñoz , Francisco Presas

We define a unital $A_\infty$-category whose objects are exact Lagrangian cobordisms in the symplectization of $Y=P\times\mathbb{R}$, with negative cylindrical ends over Legendrians equipped with augmentations. The morphism spaces are given…

Symplectic Geometry · Mathematics 2021-12-16 Noémie Legout

In this remark we discuss a relationship between (co)homology classes of a symplectic manifold realized by symplectic and lagrangian objects. We establish some transversality condition for the classes, realized by symplectic divisors and…

Symplectic Geometry · Mathematics 2007-05-23 Nik. A. Tyurin

Floer theory for Lagrangian cobordisms was developed by Biran and Cornea to study the triangulated structure of the derived Fukaya category of monotone symplectic manifolds. This paper explains how to use the language of stops to study…

Symplectic Geometry · Mathematics 2022-03-22 Valentin Bosshard