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We define and make initial study of Lie groupoids equipped with a compatible homogeneity (or graded bundle) structure, such objects we will refer to as weighted Lie groupoids. One can think of weighted Lie groupoids as graded manifolds in…

Differential Geometry · Mathematics 2015-11-12 Andrew James Bruce , Katarzyna Grabowska , Janusz Grabowski

We study generalized Lie bialgebroids over a single point, that is, generalized Lie bialgebras. Lie bialgebras are examples of generalized Lie bialgebras. Moreover, we prove that the last ones can be considered as the infinitesimal…

Differential Geometry · Mathematics 2007-05-23 D. Iglesias , J. C. Marrero

Jacobi algebroids, that is graded Lie brackets on the Grassmann algebra associated with a vector bundle which satisfy a property similar to that of the Jacobi brackets, are introduced. They turn out to be equivalent to generalized Lie…

Differential Geometry · Mathematics 2009-11-07 Janusz Grabowski , Giuseppe Marmo

This paper studies linear generalised complex structures over vector bundles, as a generalised geometry version of holomorphic vector bundles. In an adapted linear splitting, a linear generalised complex structure on a vector bundle $E\to…

Differential Geometry · Mathematics 2021-05-07 Malte Heuer , Madeleine Jotz Lean

This paper develops a graphical calculus to determine the $n$-shifted Poisson structures on finitely generated semi-free commutative differential graded algebras. When applied to the Chevalley-Eilenberg algebra of an ordinary Lie algebra,…

Quantum Algebra · Mathematics 2026-02-20 Cameron Kemp , Robert Laugwitz , Alexander Schenkel

In a preceding paper we introduced a notion of compatibility between a Jacobi structure and a Riemannian structure on a smooth manifold. We proved that in the case of fundamental examples of Jacobi structures : Poisson structures, contact…

Differential Geometry · Mathematics 2019-11-13 Yacine Aït Amrane , Ahmed Zeglaoui

We describe a procedure, called regularisation, that allows us to study geometric structures on Lie algebroids via foliated geometric structures on a manifold of higher dimension. This procedure applies to various classes of Lie algebroids;…

Differential Geometry · Mathematics 2022-11-29 Álvaro del Pino , Aldo Witte

A generalized notion of a Lie algebroid is presented. Using this, the Lie algebroid generalized tangent bundle is obtained. A new point of view over (linear) connections theory on a fiber bundle is presented. These connections are…

Differential Geometry · Mathematics 2016-11-25 Constantin M. Arcus

We define the notion of Y-algebroids, generalising the Lie, Courant, and exceptional algebroids that have been used to capture the local symmetry structure of type II string theory and M-theory compactifications to $D \geq 5$ dimensions.…

High Energy Physics - Theory · Physics 2024-12-02 Ondrej Hulik , Emanuel Malek , Fridrich Valach , Daniel Waldram

In this paper, first we modify the definition of a Hom-Lie algebroid introduced by Laurent-Gengoux and Teles and give its equivalent dual description. Many results that parallel to Lie algebroids are given. In particular, we give the notion…

Differential Geometry · Mathematics 2017-08-01 Liqiang Cai , Jiefeng Liu , Yunhe Sheng

We define Lie and Courant algebroids on Fr\'{e}chet manifolds. Moreover, we construct a Dirac structure on the generalized tangent bundle of a Fr\'{e}chet manifold and show that it inherits a Fr\'{e}chet Lie algebroid structure. We show…

Differential Geometry · Mathematics 2016-09-08 Kaveh Eftekharinasab

We prove that under certain mild assumptions a Lie bialgebroid integrates to a Poisson groupoid. This includes, in particular, a new proof of the existence of local symplectic groupoids for any Poisson manifold, a theorem of Karasev and of…

dg-ga · Mathematics 2007-05-23 Kirill C. H. Mackenzie , Ping Xu

In this paper we extend the almost complex Poisson structures from almost complex manifolds to almost complex Lie algebroids. Examples of such structures are also given and the almost complex Poisson morphisms of almost complex Lie…

Mathematical Physics · Physics 2014-09-16 Paul Popescu

We generalize to the homotopy case a result of K. Mackenzie and P. Xu on relation between Lie bialgebroids and Poisson geometry. For a homotopy Poisson structure on a supermanifold $M$, we show that $(TM, T^*M)$ has a canonical structure of…

Differential Geometry · Mathematics 2019-09-12 Theodore Voronov

The paper starts with an interpretation of the complete lift of a Poisson structure from a manifold M to its tangent bundle TM by means of the Schouten- Nijenhuis bracket of covariant symmetric tensor fields defined by the co- tangent Lie…

Differential Geometry · Mathematics 2007-05-23 Gabriel Mitric , Izu Vaisman

In recent years methods for the integration of Poisson manifolds and of Lie algebroids have been proposed, the latter being usually presented as a generalization of the former. In this note it is shown that the latter method is actually…

Symplectic Geometry · Mathematics 2015-06-26 Alberto S. Cattaneo

We investigate Atiyah algebroids, i.e. the infinitesimal objects of principal bundles, from the viewpoint of Lie algebraic approach to space. First we show that if the Lie algebras of smooth sections of two Atiyah algebroids are isomorphic,…

Differential Geometry · Mathematics 2009-05-11 Janusz Grabowski , Alexei Kotov , Norbert Poncin

We generalize Poisson-Nijenhuis structures. We prove that on a manifold endowed with a Nijenhuis tensor and a Jacobi structure which are compatible, there is a hierarchy of pairwise compatible Jacobi structures. Furthermore, we study the…

Symplectic Geometry · Mathematics 2016-08-16 Aïssa Wade

In this note, we initiate the systematic study of the Lie algebra structure of the necklace Lie algebra n of a free algebra in 2d variables. We begin by giving a description of n as an sp(2d)-module. Specializing to d = 1, we decompose n…

Rings and Algebras · Mathematics 2008-01-22 Jacques Alev , Geert Van de Weyer

In this paper, we generalize all the results obtained on para-K\"ahler Lie algebras in Journal of Algebra {\bf 436} (2015) 61-101 to para-K\"ahler Lie algebroids. In particular, we study exact para-K\"ahler Lie algebroids as a…

Differential Geometry · Mathematics 2016-11-01 Saïd Benayadi , Mohamed Boucetta