English
Related papers

Related papers: A note on coherent orientations for exact Lagrangi…

200 papers

We study the cohomology of the complexes of differential, integral and pseudo forms on odd symplectic manifolds taking the wedge product with the symplectic form as differential. We show that the cohomology classes are in correspondence…

High Energy Physics - Theory · Physics 2021-04-21 R. Catenacci , C. A. Cremonini , P. A. Grassi , S. Noja

Let $G$ be a compact connected semisimple Lie group. We extend the techniques of Weinstein [W] to give a construction in group cohomology of symplectic forms $\omega$ on \lq twisted' moduli spaces of representations of the fundamental group…

alg-geom · Mathematics 2008-02-03 Lisa C. Jeffrey

We prove that any Legendrian knot in $(S^3,\xi_{std})$ bounds an exact Lagrangian surface in $\mathbb{R}^4\setminus B^4$ after a sufficient number of stabilizations. In order to show this, we construct a family combinatorial moves on knot…

Symplectic Geometry · Mathematics 2013-09-23 Francesco Lin

We prove that the LOSS and GRID invariants of Legendrian links in knot Floer homology behave in certain functorial ways with respect to decomposable Lagrangian cobordisms in the symplectization of the standard contact structure on…

Geometric Topology · Mathematics 2019-07-30 John A. Baldwin , Tye Lidman , C. -M. Michael Wong

This paper is devoted to deformations of Lagrangian submanifolds contained in the singular locus of a log-symplectic manifold. We prove a normal form result for the log-symplectic structure around such a Lagrangian, which we use to extract…

Symplectic Geometry · Mathematics 2021-12-14 Stephane Geudens , Marco Zambon

In this paper we construct an $\mathcal{A}_\infty$-category associated to a Legendrian submanifold of jet spaces. Objects of the category are augmentations of the Chekanov algebra $\mathcal{A}(\Lambda)$ and the homology of the morphism…

Symplectic Geometry · Mathematics 2013-05-14 Frédéric Bourgeois , Baptiste Chantraine

Let k>2. We prove that the cotangent bundles of oriented homotopy (2k-1)-spheres S and S' are symplectomorphic only if the classes defined by S and S' agree up to sign in the quotient group of oriented homotopy spheres modulo those which…

Symplectic Geometry · Mathematics 2015-09-21 Tobias Ekholm , Thomas Kragh , Ivan Smith

In this paper we continue the study of positive scalar curvature (psc) metrics on a depth-1 Thom-Mather stratified space $M_\Sigma$ with singular stratum $\beta M$ (a closed manifold of positive codimension) and associated link equal to…

Differential Geometry · Mathematics 2021-06-25 Boris Botvinnik , Paolo Piazza , Jonathan Rosenberg

In this article we define intersection Floer homology for exact Lagrangian cobordisms between Legendrian submanifolds in the contactisation of a Liouville manifold, provided that the Chekanov-Eliashberg algebras of the negative ends of the…

Symplectic Geometry · Mathematics 2025-02-07 Baptiste Chantraine , Georgios Dimitroglou Rizell , Paolo Ghiggini , Roman Golovko

A surface $\Sigma \subset S^5 \subset \mathbb{C}^3$ is called \emph{special Legendrian} if the cone $0 \times \Sigma \subset \mathbb{C}^3$ is special Lagrangian. The purpose of this paper is to propose a general method toward constructing…

Differential Geometry · Mathematics 2007-05-23 Sung Ho Wang

We show that if the image of a Legendrian submanifold under a contact homeomorphism (i.e. a homeomorphism that is a $C^0$-limit of contactomorphisms) is smooth then it is Legendrian, assuming only positive local lower bounds on the…

Symplectic Geometry · Mathematics 2023-03-01 Michael Usher

Consider a Stein manifold M obtained by plumbing cotangent bundles of manifolds of dimension greater than or equal to 3 at points. We prove that the Fukaya category of closed exact Lagrangians with vanishing Maslov class in M is generated…

Symplectic Geometry · Mathematics 2012-03-28 Mohammed Abouzaid , Ivan Smith

Given a compact symplectic manifold $(M,\omega)$ and a compact Lagrangian submanifold $L\subset(M,\omega)$, we describe small deformations of the pair $(\omega,L)$ modulo the action by isotopies. We show that the resulting moduli space can…

Symplectic Geometry · Mathematics 2025-12-25 Stephane Geudens , Florian Schaetz , Alfonso G. Tortorella

Given a monotone Lagrangian submanifold invariant under a loop of Hamiltonian diffeomorphisms, we compute a piece of the closed-open string map into the Hochschild cohomology of the Lagrangian which captures the homology class of the loop's…

Symplectic Geometry · Mathematics 2018-01-23 Dmitry Tonkonog

We construct an oriented cobordism between moduli spaces of flat connections on the three holed sphere and disjoint unions of toric varieties, together with a closed two-form which restricts to the symplectic forms on the ends. As…

dg-ga · Mathematics 2008-02-03 Eckhard Meinrenken , Chris Woodward

This short and fairly informal note is an attempt to explain how methods of homological algebra may be brought to bear on problems in symplectic geometry. We do this by looking at a familiar sample question, which is that of the topology of…

Symplectic Geometry · Mathematics 2016-09-07 Paul Seidel

We prove that a real Lagrangian submanifold in a closed symplectic manifold is unique up to cobordism. We then discuss the classification of real Lagrangians in $\mathbb{C} P^2$ and $S^2\times S^2$. In particular, we show that a real…

Symplectic Geometry · Mathematics 2020-03-19 Joontae Kim

We define Hamiltonian simplex differential graded algebras (DGA) with differentials that deform the high energy symplectic homology differential and wrapped Floer homology differential in the cases of closed and open strings in a Weinstein…

Symplectic Geometry · Mathematics 2017-06-14 Tobias Ekholm , Alexandru Oancea

For an exact Lagrangian cobordism $L$ between Legendrians in $J^1(M)$ from $\Lambda_-$ to $\Lambda_+$ whose Legendrian lift is $\widetilde{L}$, we prove that sheaves in $Sh_{\widetilde{L}}(M \times \mathbb{R} \times \mathbb{R}_{>0})$ are…

Symplectic Geometry · Mathematics 2024-08-01 Wenyuan Li

The purpose of this paper is to carry out a classical construction of a non-constant holomorphic disk with boundary on (the suspension of) a Lagrangian submanifold in $\mathbb{R}^{2 n}$ in the case the Lagrangian is the lift of a…

Symplectic Geometry · Mathematics 2017-05-02 Stefan Müller
‹ Prev 1 3 4 5 6 7 10 Next ›