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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

In this paper, Floer homology for Lagrangian submanifolds in an open symplectic manifold given as the complement of a smooth divisor is discussed. The main new feature of this construction is that we do not make any assumption on positivity…

Symplectic Geometry · Mathematics 2022-10-31 Aliakbar Daemi , Kenji Fukaya

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 compute the ring structure of Floer cohomology groups of Lagrangian torus fibers in some toric Fano manifolds continuing the study of \cite{CO}. Related $\AI$-formulas hold for transversal choice of chains. Two different computations are…

Symplectic Geometry · Mathematics 2016-09-07 Cheol-Hyun Cho

In this paper we show how the rich algebraic formalism of Eliashberg-Givental-Hofer's symplectic field theory (SFT) can be used to define higher algebraic structures in Hamiltonian Floer theory. Using the SFT of Hamiltonian mapping tori we…

Symplectic Geometry · Mathematics 2020-01-01 Oliver Fabert

We introduce a combination of fixed point Floer homology and symplectic homology for Liouville domains. As an application, we detect non-trivial elements in the symplectic mapping class group of a Liouville domain.

Symplectic Geometry · Mathematics 2023-06-19 Igor Uljarevic

This article studies the symplectic cohomology of affine algebraic surfaces that admit a compactification by a normal crossings anticanonical divisor. Using a toroidal structure near the compactification divisor, we describe the complex…

Symplectic Geometry · Mathematics 2019-12-11 James Pascaleff

The present authors introduced the notion of \emph{weakly unobstructed} Lagrangian submanifolds and constructed their \emph{potential function} $\mathfrak{PO}$ purely in terms of $A$-model data in [FOOO2]. In this paper, we carry out…

Symplectic Geometry · Mathematics 2019-12-19 K. Fukaya , Y. -G. Oh , H. Ohta , K. Ono

We give the first examples of Fano manifolds with multiple optimal tori, i.e.~we construct monotone Lagrangian tori $L$, such that the weighted number of holomorphic Maslov index two discs with boundary on $L$ equals the upper bound given…

Algebraic Geometry · Mathematics 2022-06-24 Pieter Belmans , Sergey Galkin , Swarnava Mukhopadhyay

We construct absolute and relative versions of Hamiltonian Floer homology algebras for strongly semi-positive compact symplectic manifolds with convex boundary, where the ring structures are given by the appropriate versions of the…

Symplectic Geometry · Mathematics 2016-05-10 Sergei Lanzat

In this article, the authors review what the Floer homology is and what it does in symplectic geometry both in the closed string and in the open string context. In the first case, the authors will explain how the chain level Floer theory…

Symplectic Geometry · Mathematics 2007-05-23 Yong-Geun Oh , Kenji Fukaya

We use the wall-crossing formula in the non-archimedean SYZ mirror construction (arXiv: 2003.06106) to compute the Landau-Ginzburg superpotential and the one-pointed open Gromov-Witten invariants for a Chekanov-type Lagrangian torus in any…

Symplectic Geometry · Mathematics 2022-11-15 Hang Yuan

Here we study several questions concerning Liouville domains that are diffeomorphic to cylinders, so called trivial bi-fillings, for which the Liouville skeleton moreover is smooth and of codimension one; we also propose the notion of a…

Symplectic Geometry · Mathematics 2025-07-25 Georgios Dimitroglou Rizell

In this paper we study Lagrangian Floer theory on toric manifolds from the point of view of mirror symmetry. We construct a natural isomorphism between the Frobenius manifold structures of the (big) quantum cohomology of the toric manifold…

Symplectic Geometry · Mathematics 2016-03-25 Kenji Fukaya , Yong-Geun Oh , Hiroshi Ohta , Kaoru Ono

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

For a monotone symplectic manifold and a smooth anticanonical divisor, there is a formal deformation of the symplectic cohomology of the divisor complement, defined by allowing Floer cylinders to intersect the divisor. We compute this…

Symplectic Geometry · Mathematics 2024-08-22 Daniel Pomerleano , Paul Seidel

We study the following rigidity problem in symplectic geometry:can one displace a Lagrangian submanifold from a hypersurface? We relate this to the Arnold Chord Conjecture, and introduce a refined question about the existence of relative…

Symplectic Geometry · Mathematics 2013-08-06 Will J. Merry

We use spectral invariants in Lagrangian Floer theory in order to show that there exist \emph{isometric} embeddings of normed linear spaces (finite or infinite dimensional, depending on the case) into the space of Hamiltonian deformations…

Symplectic Geometry · Mathematics 2012-01-04 Frol Zapolsky

In this paper, we compute the open Gromov-Witten invariants for every compact toric surface X which is semi-Fano (i.e. the anticanonical line bundle is nef). Unlike the Fano case, this involves non-trivial obstructions in the corresponding…

Algebraic Geometry · Mathematics 2015-03-17 Kwokwai Chan , Siu-Cheong Lau

In the first part of the present series of papers, we studied the moduli spaces of holomorphic discs and strips into an open symplectic manifold, isomorphic to the complement of a smooth divisor in a closed symplectic manifold. In…

Symplectic Geometry · Mathematics 2022-10-31 Aliakbar Daemi , Kenji Fukaya
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