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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

Working over an arbitrary field of characteristic different from $2$, we extend the Skjelbred-Sund method to compatible Lie algebras and give a full classification of nilpotent compatible Lie algebras up to dimension $4$. In case the base…

Rings and Algebras · Mathematics 2024-11-11 Manuel Ladra , Bernardo Leite da Cunha , Samuel A. Lopes

We study HKT structures on nilpotent Lie groups and on associated nilmanifolds. We exhibit three weak HKT structures on $\R^8$ which are homogeneous with respect to extensions of Heisenberg type Lie groups. The corresponding hypercomplex…

Differential Geometry · Mathematics 2009-11-07 Isabel G. Dotti , Anna Fino

This is a short presentation of some classical results on finite dimensional complex Lie algebras (classification of nilpotent Lie algebras, deformations and perturbations, contractions and rigidity). We present some applications to…

Rings and Algebras · Mathematics 2008-05-06 Michel Goze

In this paper, we classify eight-dimensional non-solvable Lie algebras that support a symplectic structure. As well as a complete classification is given, up to symplectomorphism, of eight-dimensional symplectic non-solvable Lie algebras.

Symplectic Geometry · Mathematics 2023-05-23 T. Aït Aissa , M. W. Mansouri

We give a characterization of the $2$-step nilpotent Lie algebras whose corresponding Lie groups admit a left invariant complex structure. This is done by considering separately the cases when the complex structure is 2-step or 3-step…

Differential Geometry · Mathematics 2025-08-11 Maria Laura Barberis

We introduce algebroid desingularizable Poisson manifolds, a class of Poisson manifolds induced by symplectic Lie algebroids with almost-injective anchors, generalizing structures including log-symplectic, $b^m$-symplectic, $E$-symplectic…

Differential Geometry · Mathematics 2026-05-22 Shane Rankin

We define a structure of an algebra on the Lagrangian Floer cohomology of a Lagrangian submanifold over the quantum cohomology of the ambient symplectic manifold. The structure is analogous to the one defined by Biran-Cornea, but is…

Symplectic Geometry · Mathematics 2024-04-03 Peleg Bar-Lev

Starting from the classification of real Manin triples done in a previous paper we look for those that are isomorphic as 6-dimensional Lie algebras with the ad-invariant form used for construction of the Manin triples. We use several…

Quantum Algebra · Mathematics 2007-05-23 L. Snobl , L. Hlavaty

We study the six-dimensional solvmanifolds that admit complex structures of splitting type classifying the underlying solvable Lie algebras. In particular, many complex structures of this type exist on the Nakamura manifold $X$, and they…

Differential Geometry · Mathematics 2017-12-12 Daniele Angella , Antonio Otal , Luis Ugarte , Raquel Villacampa

We study symplectic structures on K\"ahler surfaces with p_g = 0. We give an example of a projective surface which admits a symplectic structure which is not compatible with any K\"ahler metric.

Symplectic Geometry · Mathematics 2010-12-17 Paolo Cascini , Dmitri Panov

In this work we study the problem of existence of symplectic structures on free nilpotent Lie algebras. Necessary and sufficient conditions are given for even dimensional ones. The one dimensional central extension for odd dimensional free…

Differential Geometry · Mathematics 2016-11-25 Viviana del Barco

In this paper, the structure of all finite-dimensional nilpotent Lie algebras of class two with derived subalgebra of dimension two over an arbitrary field $ \mathbb{F} $ is determined. Furthermore, we give the structure of the Schur…

Rings and Algebras · Mathematics 2021-05-21 F. Johari , A. Shamsaki , P. Niroomand

We develop a structure theory for nilpotent symplectic alternating algebras.

Rings and Algebras · Mathematics 2024-07-08 Layla Sorkatti , Gunnar Traustason

We give a classification of minimal algebras generated in degree 1, defined over any field $\bk$ of characteristic different from 2, up to dimension 6. This recovers the classification of nilpotent Lie algebras over $\bk$ up to dimension 6.…

Algebraic Topology · Mathematics 2010-09-21 Giovanni Bazzoni , Vicente Muñoz

The structure of nilpotent symplectic algebras of maximal class has been studied in [8, 5]. In this paper, we study the dual subclass of algebras of minimal class. In particular, we show that symplectic alternating algebras of dimension up…

Rings and Algebras · Mathematics 2024-07-04 Layla Sorkatti , Özlem Uğurlu , Manisha Varahagiri

In this paper, a symplectic structure on a Leibniz algebra is defined to be a {\em symmetric} nondegenerate bilinear form satisfying certain compatibility condition, and a phase space of a Leibniz algebra is defined to be a symplectic…

Rings and Algebras · Mathematics 2023-10-04 Rong Tang , Nanyan Xu , Yunhe Sheng

The classification of complex of real finite dimensional Lie algebras which are not semi simple is still in its early stages. For example the nilpotent Lie algebras are classified only up to the dimension 7. Moreover, to recognize a given…

Rings and Algebras · Mathematics 2017-11-29 Michel Goze , Elisabeth Remm

The existence of a flat torsion-free connection, or left symmetric algebra structure on a Lie algebra g gives rise to a canonically defined complex structure on g+g and a symplectic structure on g+g^*. We verify that the associated…

Algebraic Geometry · Mathematics 2008-05-01 R. Cleyton , J. Lauret , Y. S. Poon

We classify 7-dimensional nilpotent Lie groups, decomposable or of nilpotency step at most 4, endowed with left-invariant purely coclosed $G_2$-structures. This is done by going through the list of all 7-dimensional nilpotent Lie algebras…

Differential Geometry · Mathematics 2021-11-17 Giovanni Bazzoni , Antonio Garvín , Vicente Muñoz
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