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In this paper we find connection between the Hofer's metric of the group of Hamiltonian diffeomorphisms of a closed symplectic manifold, with an integral symplectic form, and the geometry, defined in a paper by Eliashberg and Polterovich,…

Symplectic Geometry · Mathematics 2007-05-23 Gabi Ben Simon

We introduce the notion of a symplectic hopfoid, which is a "groupoid-like" object in the category of symplectic manifolds where morphisms are given by canonical relations. Such groupoid-like objects arise when applying a version of the…

Differential Geometry · Mathematics 2017-12-20 Santiago Canez

Let $\Sigma $ be a compact connected and oriented surface with nonempty boundary and let $G$ be a Lie group equipped with a bi-invariant pseudo-Riemannian metric. The moduli space of flat principal $G$-bundles over $\Sigma$ which are…

Differential Geometry · Mathematics 2024-02-20 Daniel Álvarez

The doubled target space of the fundamental closed string is identified with its phase space and described by an almost para-Hermitian geometry. We explore this setup in the context of group manifolds which admit a maximally isotropic…

High Energy Physics - Theory · Physics 2020-01-08 Falk Hassler , Dieter Lust , Felix J. Rudolph

In this thesis we study geometric structures from Poisson and generalized complex geometry with mild singular behavior using Lie algebroids. The process of lifting such structures to their Lie algebroid version makes them less singular, as…

Symplectic Geometry · Mathematics 2017-12-29 Ralph L. Klaasse

In these lecture notes, we give a quick account of the theory of Poisson groupoids and Lie bialgebroids. In particular, we discuss the universal lifting theorem and its applications including integration of quasi-Lie bialgebroids,…

Differential Geometry · Mathematics 2012-07-30 Camille Laurent-Gengoux , Mathieu Stienon , Ping Xu

Given a symplectic manifold $M$, we may define an operad structure on the the spaces $\op^k$ of the Lagrangian submanifolds of $(\bar{M})^k\times M$ via symplectic reduction. If $M$ is also a symplectic groupoid, then its multiplication…

Symplectic Geometry · Mathematics 2020-05-29 Alberto S. Cattaneo , Benoit Dherin , Giovanni Felder

We present a geometric construction of central S^1-extensions of the quantomorphism group of a prequantizable, compact, symplectic manifold, and explicitly describe the corresponding lattice of integrable cocycles on the Poisson Lie…

Symplectic Geometry · Mathematics 2021-08-10 Bas Janssens , Cornelia Vizman

We study noncommutative generalizations of such notions of the classical symplectic geometry as degenerate Poisson structure, Poisson submanifold and quotient manifold, symplectic foliation and symplectic leaf for associative Poisson…

Symplectic Geometry · Mathematics 2007-05-23 Zakaria Giunashvili

We provide an alternative method for obtaining of compatible Poisson structures on Lie groups by means of the adjoint representations of Lie algebras. In this way, we calculate some compatible Poisson structures on four dimensional and…

Symplectic Geometry · Mathematics 2017-04-06 J. Abedi-Fardad , A. Rezaei-Aghdam , Gh. Haghighatdoost

Dirac submanifolds are a natural generalization in the Poisson category for symplectic submanifolds of a symplectic manifold. In a certain sense they correspond to symplectic subgroupoids of the symplectic groupoid of the given Poisson…

Symplectic Geometry · Mathematics 2016-09-07 Ping Xu

Poisson structures related with the affine Courant type algebroid are analyzed, including \ those related with cotangent bundles on Lie group manifolds. A special attantion is paid to Courant type algebroids and related R-structures \ on…

Symplectic Geometry · Mathematics 2023-10-24 Anatolij K. Prykarpatski , Victor A. Bovdi

Several types of generically-nondegenerate Poisson structures can be effectively studied as symplectic structures on naturally associated Lie algebroids. Relevant examples of this phenomenon include log-, elliptic, $b^k$-, scattering and…

Symplectic Geometry · Mathematics 2020-11-30 Ralph L. Klaasse

We extend the notion of Poisson-Lie groups and Lie bialgebras from Poisson to g-quasi-Poisson geometry and provide a quantization to braided Hopf algebras in the corresponding Drinfeld category. The basic examples of these g-quasi-Poisson…

Symplectic Geometry · Mathematics 2016-04-27 Pavol Ševera , Fridrich Valach

We explain how to translate several recent results in derived algebraic geometry to derived differential geometry. These concern shifted Poisson structures on NQ-manifolds, Lie groupoids, smooth stacks and derived generalisations, and…

Differential Geometry · Mathematics 2025-10-06 J. P. Pridham

This work introduces a unified approach to the reduction of Poisson manifolds using their description by graded symplectic manifolds. This yields a generalization of the classical Poisson reduction by distributions (Marsden-Ratiu…

Symplectic Geometry · Mathematics 2015-05-19 Alberto S. Cattaneo , Marco Zambon

Symplectic and Poisson structures of certain moduli spaces/Huebschmann,J./ Abstract: Let $\pi$ be the fundamental group of a closed surface and $G$ a Lie group with a biinvariant metric, not necessarily positive definite. It is shown that a…

High Energy Physics - Theory · Physics 2008-02-03 Johannes Huebschmann

We give a construction of a Poisson transform mapping density valued differential forms on generalized flag manifolds to differential forms on the corresponding Riemannian symmetric spaces, which can be described entirely in terms of finite…

Differential Geometry · Mathematics 2017-01-25 Christoph Harrach

In this paper, we will study compatible triples on Lie algebroids. Using a suitable decomposition for a Lie algebroid, we construct an integrable generalized distribution on the base manifold. As a result, the symplectic form on the Lie…

Differential Geometry · Mathematics 2016-07-12 Esmail Nazari , Abbas Heydari

We construct integrable Hamiltonian systems with Lie bialgebras $({\bf g} , {\bf \tilde{g}})$ of the bi-symplectic type for which the Poisson-Lie groups ${\bf G}$ play the role of the phase spaces, and their dual Lie groups ${\bf {\tilde…

Mathematical Physics · Physics 2019-02-07 J. Abedi-Fardad , A. Rezaei-Aghdam , Gh. Haghighatdoost