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The cobordism ring of symplectic manifolds defined by V.L. Ginzburg is shown to be isomorphic to the Pontrjagin ring of complex-oriented manifolds with free circle actions. This suggests an interpretation of the formal group law of complex…

Symplectic Geometry · Mathematics 2007-05-23 Jack Morava

We show that two hypersurfaces in a manifold are related by a sequence of embedded cobordisms if and only if they represent the same homology class. By applying handle decompositions we turn these cobordisms into a sequence of embedded…

Geometric Topology · Mathematics 2026-05-07 Stefan Friedl , Tobias Hirsch , Clayton McDonald , José Pedro Quintanilha , Daniel Zach

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

A symplectic structure is canonically constructed on any manifold endowed with a topological linear k-system whose fibers carry suitable symplectic data. As a consequence, the classification theory for Lefschetz pencils in the context of…

Symplectic Geometry · Mathematics 2007-05-23 Robert E Gompf

We study neighborhoods of configurations of symplectic surfaces in symplectic 4-manifolds. We show that suitably `positive' configurations have neighborhoods with concave boundaries and we explicitly describe open book decompositions of the…

Geometric Topology · Mathematics 2014-10-01 David T. Gay

In this paper we introduce the notion of relative Kodaira dimension for a symplectic 4-manifold M with a possibly disconnected embedded symplectic surface F. One notable feature is that the sphere components of F have to be discarded, which…

Symplectic Geometry · Mathematics 2009-04-29 Tian-Jun Li , Weiyi Zhang

We prove that an embedded cobordism between manifolds with boundary can be split into a sequence of right product and left product cobordisms, if the codimension of the embedding is at least two. This is a topological counterpart of the…

Geometric Topology · Mathematics 2013-10-10 Maciej Borodzik , Mark Powell

In this article we consider integrable systems on manifolds endowed with singular symplectic structures of order one. These structures are symplectic away from an hypersurface where the symplectic volume goes either to infinity or to zero…

Symplectic Geometry · Mathematics 2023-06-16 Robert Cardona , Eva Miranda

In this paper we give concrete estimations for the pseudo symplectic capacities of toric manifolds in combinatorial data. Some examples are given to show that our estimates can compute their pseudo symplectic capacities. As applications we…

Symplectic Geometry · Mathematics 2007-05-23 Guangcun Lu

We give a detailed study of the symplectic geometry of a family of integrable systems obtained by coupling two angular momenta in a non trivial way. These systems depend on a parameter t $\in$ [0, 1] and exhibit different behaviors…

Mathematical Physics · Physics 2018-03-08 Yohann Le Floch , Álvaro Pelayo

We introduce a procedure for gluing Weinstein domains along Weinstein subdomains. By gluing along flexible subdomains, we show that any finite collection of high-dimensional Weinstein domains with the same topology are Weinstein subdomains…

Symplectic Geometry · Mathematics 2020-05-13 Oleg Lazarev

We complete the classification of symplectic fillings of tight contact structures on lens spaces. In particular, we show that any symplectic filling $X$ of a virtually overtwisted contact structure on $L(p,q)$ has another symplectic…

Geometric Topology · Mathematics 2021-05-13 John B. Etnyre , Agniva Roy

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

An influential result of McDuff and Schlenk asserts that the function that encodes when a four-dimensional symplectic ellipsoid can be embedded into a four-dimensional ball has a remarkable structure: the function has infinitely many…

Symplectic Geometry · Mathematics 2025-02-06 Dan Cristofaro-Gardiner , Tara S. Holm , Alessia Mandini , Ana Rita Pires

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

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

To find all two-dimensional equivariant symplectic submanifolds in symplectic toric manifolds, we combine the convex geometry of Delzant polytopes with local equivariant symplectic models and obtain a criterion for determining when a…

Symplectic Geometry · Mathematics 2025-12-16 Shiyun Wen

We show that a topological symplectic manifold has a canonically associated bi-Lipschitz structure. As a corollary, we obtain the first examples of non-existence and non-uniqueness for topological symplectic structures. Our arguments hold…

Symplectic Geometry · Mathematics 2026-03-10 Dan Cristofaro-Gardiner , Boyu Zhang

A polar space S is said to be symplectic if it admits an embedding e in a projective geometry PG(V) such that the e-image e(S) of S is defined by an alternating form of V. In this paper we characterize symplectic polar spaces in terms of…

Symplectic Geometry · Mathematics 2023-09-19 Ilaria Cardinali , Hans Cuypers , Luca Giuzzi , Antonio Pasini

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
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