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Related papers: Lagrangian antisurgery

200 papers

We introduce a new operation, double point surgery, on immersed surfaces in a 4-manifold, and use it to construct knotted configurations of surfaces in many 4-manifolds. Taking branched covers, we produce smoothly exotic actions of Z/m x…

Geometric Topology · Mathematics 2018-09-05 Hee Jung Kim , Daniel Ruberman

We provide some constructions using Lagrangian cobordisms which improve known examples for some symplectic squeezing problems. Additionally, we prove a flexibility result that Lagrangian submanifolds which are Lagrangian isotopic are also…

Symplectic Geometry · Mathematics 2022-09-01 Jeff Hicks , Cheuk Yu Mak

We establish an $h$-principle for exact Lagrangian immersions with transverse self-intersections and the minimal, or near-minimal number of double points. One corollary of our result is that any orientable closed 3-manifold admits an exact…

Symplectic Geometry · Mathematics 2013-07-03 Tobias Ekholm , Yakov Eliashberg , Emmy Murphy , Ivan Smith

We introduce new pseudo-metrics on spaces of Lagrangian submanifolds of a symplectic manifold $(M,\omega)$ by considering areas associated to projecting Lagrangian cobordisms in $\mathbb{C} \times M$ to the "time-energy plane" $\mathbb{C}$.…

Symplectic Geometry · Mathematics 2015-11-30 Octav Cornea , Egor Shelukhin

In this paper we introduce a technique, called rim surgery, which can change a smooth embedding of an orientable surface of positive genus and nonnegative self-intersection in a smooth 4-manifold while leaving the topological embedding…

dg-ga · Mathematics 2008-02-03 Ronald Fintushel , Ronald J. Stern

The purpose of this paper is to describe a dictionary geometry <--> algebra in Lagrangian topology. As a by-product we obtain a tautological (in a sense explained in the body of the paper) proof of a folklore conjecture (sometimes…

Symplectic Geometry · Mathematics 2020-03-17 Paul Biran , Octav Cornea

Embedded Lagrangian cobordisms between Legendrian submanifolds are produced from isotopy, spinning, and handle attachment constructions that employ the technique of generating families. Moreover, any Legendrian with a generating family has…

Symplectic Geometry · Mathematics 2015-09-30 Frederic Bourgeois , Joshua M. Sabloff , Lisa Traynor

We construct new special Lagrangian submanifolds in complex Euclidean space using a pair of minimal Legendrian submanifolds in odd-dimensional spheres and certain Lagrangian surface belonging to a family that can be considered as a…

Differential Geometry · Mathematics 2012-12-04 Ildefonso Castro , Francisco Urbano

We introduce a structural approach to study Lagrangian submanifolds of the complex hyperquadric in arbitrary dimension by using its family of non-integrable almost product structures. In particular, we define local angle functions encoding…

Differential Geometry · Mathematics 2019-06-10 Haizhong Li , Hui Ma , Joeri Van der Veken , Luc Vrancken , Xianfeng Wang

We prove that if L_0 and L_1 are exact branes intersecting in precisely one point, then there exists a fiber sequence in the infinity-category of Lagrangian cobordisms consisting of L_0, L_1, and a surgery of L_0 with L_1. By combining this…

Symplectic Geometry · Mathematics 2018-06-19 Hiro Lee Tanaka

We study the topology of Lagrangian submanifolds in standard symplectic vector spaces $\mathbb{C}^n$ using ideas from open-closed string topology. Specifically, for a closed, oriented, spin Lagrangian $L$, we construct a (possibly curved)…

Symplectic Geometry · Mathematics 2026-04-10 Shuhao Li

This is an overview paper that describes Eliashberg's Legendrian surgery approach to wrapped Floer cohomology and use it to derive the basic relations between various holomorphic curve theories with additional algebraic constructions. We…

Symplectic Geometry · Mathematics 2024-11-20 Tobias Ekholm

In this paper, we present new obstructions to the existence of Lagrangian cobordisms in $\mathbb{R}^4$ that depend only on the enriched knot diagrams of the boundary knots or links, using holomorphic curve techniques. We define enriched…

Symplectic Geometry · Mathematics 2022-10-21 Ipsita Datta

We prove that every closed, connected contact 3-manifold can be obtained from the 3-sphere with its standard contact structure by contact surgery of coefficient plus or minus 1 along a Legendrian link. As a corollary, we derive a result of…

Symplectic Geometry · Mathematics 2009-11-07 Fan Ding , Hansjörg Geiges

We define an simple invariant of an embedded nullhomologous Lagrangian torus and use this invariant to show that many symplectic 4-manifolds have infinitely many pairwise symplectically inequivalent nullhomologous Lagrangian tori. We…

Symplectic Geometry · Mathematics 2014-11-11 Ronald Fintushel , Ronald J Stern

In this article we use the technique of Luttinger surgery to produce small examples of simply connected and non-simply connected minimal symplectic 4-manifolds. In particular, we construct: (1) An example of a minimal symplectic 4-manifold…

Geometric Topology · Mathematics 2007-05-23 Scott Baldridge , Paul Kirk

In an earlier paper, we showed that the moduli space of deformations of a smooth, compact, orientable special Lagrangian submanifold L in a symplectic manifold X with a non-integrable almost complex structure is a smooth manifold of…

Differential Geometry · Mathematics 2007-05-23 Sema Salur

We show that up to stabilizations, smooth ribbon cobordisms can be realized by decomposable Lagrangian cobordisms. We also define the notion of stabilization for Lagrangian cobordisms and show that it can be used to find new Lagrangian…

Symplectic Geometry · Mathematics 2024-10-10 John B. Etnyre , Caitlin Leverson

Can a given Lagrangian submanifold be realized as the fixed point set of an anti-symplectic involution? If so, it is called \emph{real}. We give an obstruction for a closed Lagrangian submanifold to be real in terms of the displacement…

Symplectic Geometry · Mathematics 2020-05-20 Joé Brendel

This article defines a pair of combinatorial operations on the combinatorial structure of compact right-angled hyperbolic polyhedra in dimension three called decomposition and edge surgery. It is shown that these operations simplify the…

Geometric Topology · Mathematics 2014-10-01 Taiyo Inoue