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Related papers: Exact Lagrangian cobordism and pseudo-isotopy

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We construct a product on the Floer complex associated to a pair of Lagrangian cobordisms. More precisely, given three exact transverse Lagrangian cobordisms in the symplectization of a contact manifold, we define a map $\mathfrak{m}_2$ by…

Symplectic Geometry · Mathematics 2020-06-18 Noémie Legout

Let (M,w) be a compact symplectic 2n-manifold, and g a Riemannian metric on M compatible with w. For instance, g could be Kahler, with Kahler form w. Consider compact Lagrangian submanifolds L of M. We call L Hamiltonian stationary, or…

Differential Geometry · Mathematics 2015-10-08 Dominic Joyce , Yng-Ing Lee , Richard Schoen

We study lower semi-continuity properties of the volume, i.e., the surface area, of a closed Lagrangian manifold with respect to the Hofer- and $\gamma$-distance on a class of monotone Lagrangian submanifolds Hamiltonian isotopic to each…

Symplectic Geometry · Mathematics 2022-10-11 Erman Cineli , Viktor L. Ginzburg , Basak Z. Gurel

Compact pseudo-Riemannian manifolds that have parallel Weyl tensor without being conformally flat or locally symmetric are known to exist in infinitely many dimensions greater than 4. We prove some general topological properties of such…

Differential Geometry · Mathematics 2011-06-07 Andrzej Derdzinski , Witold Roter

We prove that for any element in the $\gamma$-completion of the space of smooth compact exact Lagrangian submanifolds of a cotangent bundle, if its $\gamma$-support is a smooth Lagrangian submanifold, then the element itself is a smooth…

Symplectic Geometry · Mathematics 2025-04-22 Tomohiro Asano , Stéphane Guillermou , Yuichi Ike , Claude Viterbo

We reformulate maximal D=5 supergravity in the consistent approach uniquely based on Free Differential Algebras and the solution of their Bianchi identities (= rheonomic method). In this approach the lagrangian is unnecessary since the…

High Energy Physics - Theory · Physics 2009-10-31 L. Andrianopoli , F. Cordaro , P. Fre' , L. Gualtieri

Dimensional reduction of the M5 brane on a Lorentzian manifold along a lightlike direction results in a five-dimensional gauge theory, which can be reformulated covariantly in six dimensions, where one puts the Lie derivatives along the…

High Energy Physics - Theory · Physics 2023-09-12 Andreas Gustavsson

As was shown by a part of the authors, for a given $(2, 3, 5)$-distribution $D$ on a $5$-dimensional manifold $Y$, there is, locally, a Lagrangian cone structure $C$ on another $5$-dimensional manifold $X$ which consists of abnormal or…

Differential Geometry · Mathematics 2018-08-02 Goo Ishikawa , Yumiko Kitagawa , Asahi Tsuchida , Wataru Yukuno

It is known that any closed, exact Lagrangian in the cotangent bundle of a closed, smooth manifold is of the same homotopy type as the zero section. In this paper, we give a Fukaya-theoretic proof of this fact for the sphere and torus to…

Symplectic Geometry · Mathematics 2022-11-30 Raunak Kundagrami

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

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 investigate the interactions between the Legendrian satellite construction and the existence of exact, orientable Lagrangian cobordisms between Legendrian knots. Given Lagrangian cobordisms between two Legendrian knots and between two…

Symplectic Geometry · Mathematics 2022-09-09 Roberta Guadagni , Joshua M. Sabloff , Matthew Yacavone

Let $(M,\omega)$ be a symplectic manifold endowed with a agrangian foliation ${\cal L}$, it has been shown by Weinstein [16] hat the symplectic structure of $M$ defines on each leaf of ${\cal L}$, connection which curvature and torsion…

Differential Geometry · Mathematics 2007-05-23 Aristide Tsemo

Let $N$ be a closed manifold and $U \subset T^*(N)$ a bounded domain in the cotangent bundle of $N$, containing the zero-section. A conjecture due to Viterbo asserts that the spectral metric for Lagrangian submanifolds that are…

Symplectic Geometry · Mathematics 2020-08-12 Paul Biran , Octav Cornea

We introduce the notion of a symplectic Lie affgebroid and their Lagrangian submanifolds in order to describe the Lagrangian (Hamiltonian) dynamics on a Lie affgebroid in terms of this type of structures. Several examples are discussed.

Differential Geometry · Mathematics 2016-08-16 D. Iglesias , J. C. Marrero , E. Padrón , D. Sosa

\noindent Let $M\to N$ (resp.\ $C\to N$) be the fibre bundle of pseudo-Riemannian metrics of a given signature (resp.\ the bundle of linear connections) on an orientable connected manifold $N$. A geometrically defined class of first-order…

Mathematical Physics · Physics 2011-04-15 J. Muñoz Masqué , M. Eugenia Rosado María

We considered a surgery, called Lagrangian attaching disk surgery, that can be applied to a Lagrangian surface L at the presence of a Lagrangian attaching disk D, to obtain a new Lagrangian surface L' which is always smoothly isotopic to L.…

Symplectic Geometry · Mathematics 2013-09-10 Mei-Lin Yau

Let g be a finite-dimensional complex semi simple Lie algebra. We present a new calculation of the continuous cohomology of the Lie algebra z g[[z]]. In particular, we shall give an explicit formula for the Laplacian on the Lie algebra…

Representation Theory · Mathematics 2007-05-23 Yunhyong Kim

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 obtain families of non-isotopic closed exact Lagrangian submanifolds in quasi-projective holomorphic symplectic manifolds that admit contracting $\mathbb{C}^*$-actions. We show that the Floer cohomologies of these Lagrangians are…

Symplectic Geometry · Mathematics 2022-06-14 Filip Živanović
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