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We compute the quantum cohomology relative to a Lagrangian submanifold in some complete intersections. For quadric hypersurfaces, we also give a full computation of the genus zero open Gromov-Witten invariants.

Symplectic Geometry · Mathematics 2024-02-06 Kai Hugtenburg , Sara B. Tukachinsky

We define a broad class of local Lagrangian intersections which we call quasi-minimally degenerate (QMD) before developing techniques for studying their local Floer homology. In some cases, one may think of such intersections as modeled on…

Symplectic Geometry · Mathematics 2023-07-20 Shamuel Auyeung

This work has two goals. The first is to provide a conceptual introduction to Heegaard Floer homology, the second is to survey the current state of the field, without aiming for completeness. After reviewing the structure of Heegaard Floer…

Geometric Topology · Mathematics 2015-04-07 Andras Juhasz

We survey the different versions of Floer homology that can be associated to three-manifolds. We also discuss their applications, particularly to questions about surgery, homology cobordism, and four-manifolds with boundary. We then…

Geometric Topology · Mathematics 2015-08-04 Ciprian Manolescu

We present an array of new calculations in Lagrangian Floer theory which demonstrate observations relating to symplectic reduction, grading periodicity, and the closed-open map. We also illustrate Perutz's symplectic Gysin sequence and the…

Symplectic Geometry · Mathematics 2021-11-10 Jack Smith

We introduce geometric quantization in the setting of shifted symplectic structures. We define Lagrangian fibrations and prequantizations of shifted symplectic stacks and their geometric quantization. In addition, we study many examples…

Symplectic Geometry · Mathematics 2020-11-12 Pavel Safronov

We explain how to use bordered algebras to compute a version of link Floer homology. As a corollary, we also give a fast computation of the Thuston polytope for links in the three-sphere.

Geometric Topology · Mathematics 2020-04-17 Peter Ozsvath , Zoltan Szabo

Using the combinatorial approach to knot Floer homology, we define an invariant for Legendrian knots in the three-sphere, which takes values in link Floer homology. This invariant can be used to also construct an invariant of transverse…

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

For a simply-connected compact semisimple Lie group $G$ and its maximal torus $T$, we study the $A_{\infty}$-functor associated to the moment Lagrangian correspondence from the cotangent bundle $T^*G$ to the square $G/T^{-} \times G/T$. In…

Symplectic Geometry · Mathematics 2021-07-28 Hanwool Bae , Naichung Conan Leung

The purpose of this paper is to extend the construction of the PSS-type isomorphism between the Floer homology and the quantum homology of a monotone Lagrangian submanifold $L$ of a symplectic manifold $M$, provided that the minimal Maslov…

Symplectic Geometry · Mathematics 2015-07-13 Frol Zapolsky

It is the goal of this paper to present the first steps for defining the analogue of Hamiltonian Floer theory for covariant field theory, treating time and space relativistically. While there already exist a number of competing geometric…

Symplectic Geometry · Mathematics 2022-11-23 Ronen Brilleslijper , Oliver Fabert

We construct orientations on moduli spaces of pseudoholomorphic quilts with seam conditions in Lagrangian correspondences equipped with relative spin structures and determine the effect of various gluing operations on the orientations. We…

Symplectic Geometry · Mathematics 2017-06-09 Katrin Wehrheim , Chris Woodward

This (partially expository) paper discusses Lagrangian Floer cohomology in the context of Lefschetz fibrations, with emphasis on the algebraic structures encountered there. In addition to the well-known directed A_infinity algebras which…

Symplectic Geometry · Mathematics 2016-02-09 Paul Seidel

We give an explicit description of the Floer cohomology of a family of Dehn twists about disjoint Lagrangian spheres in a w+ - monotone rational symplectic manifold. As a byproduct of our framework, in a monotone symplectic manifold we are…

Symplectic Geometry · Mathematics 2023-09-14 Riccardo Pedrotti

We prove that the cohomology algebra of elliptic arrangements depends only on the poset of layers. In the particular case of braid elliptic arrangements, we study the cohomology as representation and we compute some Hodge numbers. Finally,…

Algebraic Topology · Mathematics 2019-01-08 Roberto Pagaria

We study some relation between some geometrically defined classes of diffeomorphisms between manifolds and the $L_{q,p}$-cohomology of these manifolds. Some applications to vanishing and non vanishing results in $L_{q,p}$-cohomology are…

Differential Geometry · Mathematics 2008-04-02 Vladimir Gol'dshtein , Marc Troyanov

We establish two spectral sequences in knot Floer homology associated to a directed strongly invertible knot K: one from the knot Floer homology of K to a two dimensional vector space, and one from the singular knot Floer homology of a…

Geometric Topology · Mathematics 2024-08-27 Aakash Parikh

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 show that in many examples the non-displaceability of Lagrangian submanifolds by Hamiltonian isotopy can be proved via Lagrangian Floer cohomology with non-unitary line bundle. The examples include all monotone Lagrangian torus fibers in…

Symplectic Geometry · Mathematics 2009-11-13 Cheol-Hyun Cho

Bordered Floer homology associates to a parametrized oriented surface a certain differential graded algebra. We study the properties of this algebra under splittings of the surface. To the circle we associate a differential graded…

Geometric Topology · Mathematics 2017-01-23 Christopher L. Douglas , Ciprian Manolescu
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