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Related papers: New obstructions to symplectic embeddings

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This work is devoted to a systematic study of symplectic convexity for integrable Hamiltonian systems with elliptic and focus-focus singularities. A distinctive feature of these systems is that their base spaces are still smooth manifolds…

Symplectic Geometry · Mathematics 2018-09-18 Tudor Ratiu , Christophe Wacheux , Nguyen Tien Zung

We show that complex symplectic structures need not be preserved under small deformations, and we find sufficient conditions for this to happen. We study various cohomologies of compact complex symplectic manifolds, obtaining some…

Differential Geometry · Mathematics 2025-07-08 Giovanni Bazzoni , Marco Freibert , Adela Latorre , Nicoletta Tardini

We study the relationship between a homological capacity $c_{\mathrm{SH}^+}(W)$ for Liouville domains $W$ defined using positive symplectic homology and the existence of periodic orbits for Hamiltonian systems on $W$: If the positive…

Symplectic Geometry · Mathematics 2021-07-12 Gabriele Benedetti , Jungsoo Kang

We prove that an integrable system over a symplectic manifold, whose symplectic form is covariantly constant w.r.t. the Gauss-Manin connection, carries a natural hyper-symplectic structure. Moreover, a special Kaehler structure is induced…

Differential Geometry · Mathematics 2009-11-10 C. Bartocci , I. Mencattini

We show that under appropriate hypotheses, a plumbing of symplectic surfaces in a symplectic 4-manifold admits strongly convex neighborhoods. Moreover the neighborhoods are Lefschetz fibered with an easily-described open book on the…

Symplectic Geometry · Mathematics 2011-11-23 David Gay , Thomas E. Mark

We present an alternative proof of the Coisotropic Embedding Theorem in which the geometric choice of a connection is recast as the algebraic choice of an embedding into the cotangent bundle. The symplectic thickening is then identified as…

Differential Geometry · Mathematics 2025-09-08 Luca Schiavone

In this paper, we study reducible surgeries on knots in $S^3$. We develop thickness bounds for L-space knots that admit reducible surgeries, and lower bounds on the slice genus for general knots that admit reducible surgeries. The L-space…

Geometric Topology · Mathematics 2022-09-07 Holt Bodish , Robert DeYeso

We show that any compact symplectic manifold (W,\omega) with boundary embeds as a domain into a closed symplectic manifold, provided that there exists a contact plane \xi on dW which is weakly compatible with omega, i.e. the restriction…

Symplectic Geometry · Mathematics 2007-05-23 Yakov Eliashberg

The space of symplectic connections on a symplectic manifold is a symplectic affine space. M. Cahen and S. Gutt showed that the action of the group of Hamiltonian diffeomorphisms on this space is Hamiltonian and calculated the moment map.…

Differential Geometry · Mathematics 2020-01-22 Daniel J. F. Fox

This paper defines symplectic scale manifolds based on Hofer-Wysocki-Zehnder's scale calculus. We introduce Hamiltonian vector fields and flows on these by narrowing down sc-smoothness to what we denote by strong sc-smoothness, a concept…

Symplectic Geometry · Mathematics 2018-01-17 João Bernardo Crespo , Oliver Fabert

We have researched the condition for symplectic discretization to preserve local boundedness for the space of 2-dimensional Hamiltonian dynamical systems in this paper.

Dynamical Systems · Mathematics 2013-06-25 Wu-Hwan Jong , Yon-Hui Jo

We define a capacity which measures the size of Weinstein tubular neighbourhoods of Lagrangian submanifolds. In symplectic vector spaces this leads to bounds on the codisc radius for any closed Lagrangian submanifold in terms of Viterbo's…

Symplectic Geometry · Mathematics 2013-12-06 Kai Zehmisch

We investigate spaces of symplectic embeddings of $n\leq 4$ balls into the complex projective plane. We prove that they are homotopy equivalent to explicitly described algebraic subspaces of the configuration spaces of $n$ points. We…

Symplectic Geometry · Mathematics 2024-02-09 Sílvia Anjos , Jarek Kędra , Martin Pinsonnault

We study holomorphic spheres in certain symplectic cobordisms and derive information about periodic Reeb orbits in the concave end of these cobordisms from the non-compactness of the relevant moduli spaces. We use this to confirm the strong…

Symplectic Geometry · Mathematics 2019-03-12 Hansjörg Geiges , Kai Zehmisch

This paper is the last in a series of three papers which investigate pseudoholomorphic strips in the symplectisation of a three dimensional closed contact manifold with a mixed boundary condition. We will prove a compactness and an…

Symplectic Geometry · Mathematics 2007-05-23 Casim Abbas

ECH capacities were developed by Hutchings to study embedding problems for symplectic $4$-manifolds with boundary. They have found especial success in the case of certain toric symplectic manifolds where many of the computations resemble…

Symplectic Geometry · Mathematics 2022-02-17 Ben Wormleighton

We prove that symplectic cohomology for open convex symplectic manifolds is invariant when the symplectic form undergoes deformations which may be non-exact and non-compactly supported, provided one uses the correct local system of…

Symplectic Geometry · Mathematics 2020-10-01 Gabriele Benedetti , Alexander F. Ritter

In the holomorphic or algebraic setting we consider a vector bundle E on a smooth subvariety X in a smooth variety Y over a field of characteristic zero. Assuming E extends to the l-th neighborhood of X in Y, we study cohomological…

Algebraic Geometry · Mathematics 2022-10-04 Vladimir Baranovsky , Hongseok Chang

In this work, we explore the implications of applying the formalism of symplectic geometry to quantum mechanics, particularly focusing on many-particle systems. We extend the concept of a symplectic indicator of entanglement, originally…

Quantum Physics · Physics 2025-08-20 Piotr Dulian , Adam Sawicki

In this paper we consider a geometric variant of Hofer's symplectic energy, which was first considered by Eliashberg and Hofer in connection with their study of the extent to which the interior of a region in a symplectic manifold…

Differential Geometry · Mathematics 2008-02-03 François Lalonde , Dusa McDuff