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We completely solve the symplectic packing problem with equally sized balls for any rational, ruled, symplectic 4-manifolds. We give explicit formulae for the packing numbers, the generalized Gromov widths, the stability numbers, and the…

Symplectic Geometry · Mathematics 2011-04-19 Olguta Buse , Martin Pinsonnault

The ellipsoid embedding function of a symplectic four-manifold measures the amount by which its symplectic form must be scaled in order for it to admit an embedding of an ellipsoid of varying eccentricity. This function generalizes the…

Symplectic Geometry · Mathematics 2025-01-29 Caden Farley , Tara Holm , Nicki Magill , Jemma Schroder , Morgan Weiler , Zichen Wang , Elizaveta Zabelina

We develop Floer theory of Lagrangian torus fibers in compact symplectic toric orbifolds. We first classify holomorphic orbi-discs with boundary on Lagrangian torus fibers. We show that there exists a class of basic discs such that we have…

Symplectic Geometry · Mathematics 2014-08-01 Cheol-Hyun Cho , Mainak Poddar

We study symplectic embeddings of ellipsoids into balls. In the main construction, we show that a given embedding of 2m-dimensional ellipsoids can be suspended to embeddings of ellipsoids in any higher dimension. In dimension 6,s if the…

Symplectic Geometry · Mathematics 2011-12-08 Olguta Buse , Richard Hind

A striking result of McDuff and Schlenk asserts that in determining when a four-dimensional symplectic ellipsoid can be symplectically embedded into a four-dimensional symplectic ball, the answer is governed by an "infinite staircase"…

Symplectic Geometry · Mathematics 2022-11-02 Dan Cristofaro-Gardiner

We prove that a very general cubic fourfold containing a plane can be embedded into a holomorphic symplectic eightfold as a Lagrangian submanifold. We construct the desired holomorphic symplectic eightfold as a moduli space of Bridgeland…

Algebraic Geometry · Mathematics 2014-07-29 Genki Ouchi

We prove that a Weinstein domain symplectically embedded in a closed symplectic manifold always admits symplectic hypersurfaces in its complement, possibly after a deformation. As a consequence, we obtain an obstruction for a closed…

Symplectic Geometry · Mathematics 2025-12-05 Thomas E. Mark , Bülent Tosun

We extend constructions and results of Damian to get topological obstructions to the existence of closed monotone Lagrangian embeddings into the cotangent bundle of a space which is the total space of a fibration over the circle.

Symplectic Geometry · Mathematics 2008-10-23 AGNès Gadbled

The classical Birkhoff conjecture claims that the boundary of a strictly convex integrable billiard table is necessarily an ellipse (or a circle as a special case). In this article we prove a complete local version of this conjecture: a…

Dynamical Systems · Mathematics 2018-03-22 Vadim Kaloshin , Alfonso Sorrentino

We present recursive formulas which compute the recently defined "higher symplectic capacities" for all convex toric domains. In the special case of four-dimensional ellipsoids, we apply homological perturbation theory to the associated…

Symplectic Geometry · Mathematics 2021-04-08 Kyler Siegel

The purpose of this paper is to present some results on the existence of homologous, nonisotopic symplectic or lagrangian surfaces embedded in a simply connected symplectic 4-dimensional manifold.

Geometric Topology · Mathematics 2007-05-23 Stefano Vidussi

The main theme of this paper is the introduction of a new type of polarizations, suited for some open symplectic manifolds, and their applications. These applications include symplectic embedding results that answer a question by…

Symplectic Geometry · Mathematics 2026-03-09 Emmanuel Opshtein , Felix Schlenk

We develop an approach to affine symplectic invariant geometry of Lagrangian surfaces by the method of moving frames. The fundamental invariants of elliptic Lagrangian immersions in affine symplectic four-space are derived together with…

Differential Geometry · Mathematics 2009-07-01 Emilio Musso , Lorenzo Nicolodi

We show how to reduce the problem of symplectically embedding one 4-dimensional rational ellipsoid into another to a problem of embedding disjoint unions of balls into appropriate blow ups of \C P^2. For example, the problem of embedding…

Symplectic Geometry · Mathematics 2008-12-02 Dusa McDuff

For a given embedded Lagrangian in the complement of a complex hypersurface we show existence of a holomorphic disc in the complement having boundary on that Lagrangian.

Geometric Topology · Mathematics 2007-05-23 Klaus Mohnke

Let $\mathbb{D}$ be the unit disc in $\mathbb{C}$, then $\mathbb{D}^n(r)$ is the complex or symplectic $n$-discs of radius $r$. Let $z_j = x_j+iy_j\in\mathbb{C}, j=1,2$ and $\mathbb{D}_{\mathbb{R}}^2=\{(z_1,z_2) :…

Symplectic Geometry · Mathematics 2015-09-28 Yat-Sen Wong

We define and solve the toric version of the symplectic ball packing problem, in the sense of listing all 2n-dimensional symplectic-toric manifolds which admit a perfect packing by balls embedded in a symplectic and torus equivariant…

Symplectic Geometry · Mathematics 2007-05-23 Alvaro Pelayo

Given two 4-dimensional ellipsoids whose symplectic sizes satisfy a specified inequality, we prove that a certain loop of symplectic embeddings between the two ellipsoids is noncontractible. The statement about symplectic ellipsoids is a…

Symplectic Geometry · Mathematics 2018-09-13 Mihai Munteanu

The following interesting quantity was introduced by K. Cieliebak and K. Mohnke for a Lagrangian submanifold $L$ of a symplectic manifold: the minimal positive symplectic area of a disc with boundary on $L$. They also showed that this…

Symplectic Geometry · Mathematics 2016-05-02 Georgios Dimitroglou Rizell

A stabilized polydisc is a product of a symplectic polydisc and several copies of the complex plane. This paper gives a complete characterization of symplectic embeddings of stabilized polydiscs into other stabilized polydiscs.

Symplectic Geometry · Mathematics 2021-01-06 Daniel Irvine