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Let $X$ be a union of a sequence of symplectic manifolds of increasing dimension and let $M$ be a manifold with a closed $2$-form $\omega$. We use Tischler's elementary method for constructing symplectic embeddings in complex projective…

Symplectic Geometry · Mathematics 2016-03-07 Manuel Araujo , Gustavo Granja

By a result of Eliashberg, every symplectic filling of a three-dimensional contact connected sum is obtained by performing a boundary connected sum on another symplectic filling. We prove a partial generalization of this result for…

Symplectic Geometry · Mathematics 2016-03-15 Paolo Ghiggini , Klaus Niederkrüger , Chris Wendl

Given a closed manifold N and a self-indexing Morse function f: N --> R with up to four distinct Morse indices, we construct a symplectic Lefschetz fibration pi: E --> C which models the complexification of f on the disk cotangent bundle,…

Symplectic Geometry · Mathematics 2009-06-09 Joe Johns

In this paper, we compute contact homology of some quasi-regular contact structures, which admit Hamiltonian actions of Reeb type of Lie groups. We will discuss the toric contact case, (where the torus is of Reeb type), and the case of…

Symplectic Geometry · Mathematics 2009-11-02 Justin Pati

Let $B^{2n}(R)$ denote the closed $2n$-dimensional symplectic ball of area $R$, and let $\Sigma_g(L)$ be a closed symplectic surface of genus $g$ and area $L$. We prove that there is a symplectic embedding $\bigsqcup_{i=1}^k B^4(R_i) \times…

Symplectic Geometry · Mathematics 2023-12-21 Kyler Siegel , Yuan Yao

We define a family of symplectic invariants which obstruct exact symplectic embeddings between Liouville manifolds, using the general formalism of linearized contact homology and its L-infinity structure. As our primary application, we…

Symplectic Geometry · Mathematics 2024-04-24 Sheel Ganatra , Kyler Siegel

Let S be a compact connected oriented orbifold surface We show that using Bers simultaneous uniformization, the moduli space of projective structure on S can be mapped biholomorphically onto the total space of the holomorphic cotangent…

Complex Variables · Mathematics 2016-06-23 Pablo Ares-Gastesi , Indranil Biswas

We study Reeb dynamics on prequantization circle bundles and the filtered (equivariant) symplectic homology of prequantization line bundles, aka negative line bundles, with symplectically aspherical base. We define (equivariant) symplectic…

Symplectic Geometry · Mathematics 2018-06-18 Viktor L. Ginzburg , Jeongmin Shon

Symplectic torus bundles $\xi:T^{2}\to E\to B$ are classified by the second cohomology group of $B$ with local coefficients $H_{1}(T^{2})$. For $B$ a compact, orientable surface, the main theorem of this paper gives a necessary and…

Symplectic Geometry · Mathematics 2007-05-23 Peter J. Kahn

We consider an entropy-type invariant which measures the polynomial volume growth of submanifolds under the iterates of a map, and we establish sharp uniform lower bounds of this invariant for the following classes of symplectomorphisms of…

Symplectic Geometry · Mathematics 2007-05-23 Urs Frauenfelder , Felix Schlenk

We introduce scattering-symplectic manifolds, manifolds with a type of minimally degenerate Poisson structure that is not too restrictive so as to have a large class of examples, yet restrictive enough for standard Poisson invariants to be…

Symplectic Geometry · Mathematics 2021-01-27 Melinda Lanius

The Coulomb branch geometry of a 4d $\mathcal{N}=2$ SCFT is encoded in the data of a complex integrable system. In class-S, this is the Hitchin System (of ADE type) on the punctured curves $C$ on which we compactified from 6d to 4d. As we…

High Energy Physics - Theory · Physics 2025-11-03 Aswin Balasubramanian , Jacques Distler , Ron Donagi , Carlos Perez-Pardavila

We define Hamiltonian Floer homology with differential graded (DG) local coefficients for symplectically aspherical manifolds. The differential of the underlying complex involves chain representatives of the fundamental classes of the…

Symplectic Geometry · Mathematics 2026-05-14 Jean-François Barraud , Mihai Damian , Vincent Humilière , Alexandru Oancea

In this paper we compute the homotopy groups of the symplectomorphism groups of the 3-, 4- and 5-point blow-ups of the projective plane (considered as monotone symplectic Del Pezzo surfaces). Along the way, we need to compute the homotopy…

Symplectic Geometry · Mathematics 2014-05-13 Jonathan David Evans

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

We first study symplectically embedded curves in symplectic surfaces with high self-intersection numbers compared to their genus. We prove in two different ways that such a curve completely determines both the diffeomorphism type of the…

Symplectic Geometry · Mathematics 2021-11-10 Fabien Kütle

We prove that all normalized symplectic capacities coincide on smooth domains in $\mathbb C^n$ which are $C^2$-close to the Euclidean ball, whereas this fails for some smooth domains which are just $C^1$-close to the ball. We also prove…

Symplectic Geometry · Mathematics 2023-12-13 Alberto Abbondandolo , Gabriele Benedetti , Oliver Edtmair

We present a handlebody construction of small symplectic caps, and hence of small closed symplectic 4-manifolds. We use this to construct handlebody descriptions of symplectic embeddings of rational homology balls in…

Geometric Topology · Mathematics 2025-08-21 John B. Etnyre , Hyunki Min , Lisa Piccirillo , Agniva Roy

In this paper we obtain new obstructions to symplectic embeddings of the four-dimensional polydisk $P(a,1)$ into the ball $B(c)$ for $2\leq a<\frac{\sqrt{7}-1} {\sqrt{7}-2} \approx 2.549$, extending work done by Hind-Lisi and Hutchings.…

Symplectic Geometry · Mathematics 2018-05-02 Katherine Christianson , Jo Nelson

We show that simply connected contact manifolds that are subcritically Stein fillable have a unique symplectically aspherical filling up to diffeomorphism. Various extensions to manifolds with non-trivial fundamental group are discussed.…

Symplectic Geometry · Mathematics 2019-11-11 Kilian Barth , Hansjörg Geiges , Kai Zehmisch