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In this work we deal with left invariant complex and symplectic structures on simply connected four dimensional solvable real Lie groups. We search the general form of such structures, when they exist and we make use of this information to…

Differential Geometry · Mathematics 2007-05-23 Gabriela Ovando

Multiplicative left Hom-Leibniz algebras have natural Hom-Lie-Yamaguti structure.

Rings and Algebras · Mathematics 2012-08-31 Donatien Gaparayi , A. Nourou Issa

In this paper, we consider compatible Hom-Lie algebras as a twisted version of compatible Lie algebras. Compatible Hom-Lie algebras are characterized as Maurer-Cartan elements in a suitable bidifferential graded Lie algebra. We also define…

Rings and Algebras · Mathematics 2023-08-16 Apurba Das

In this paper, we study deformations of complex structures on Lie algebras and its associated deformations of Dolbeault cohomology classes. A complete deformation of complex structures is constructed in a way similar to the Kuranishi…

Differential Geometry · Mathematics 2021-09-03 Wei Xia

We classify real 6-dimensional nilpotent Lie algebras for which the corresponding Lie group has a left-invariant complex structure, and estimate the dimensions of moduli spaces of such structures.

Differential Geometry · Mathematics 2007-05-23 Simon Salamon

Complex and Hermitian structures on hom-Lie algebras are introduced and some examples of these structures are presented. Also, it is shown that there not exists a proper complex (Hermitian) home-Lie algebra of dimension two. Then using a…

Rings and Algebras · Mathematics 2016-10-26 E. Peyghan , L. Nourmohammadifar

The purpose of this paper is to study hom-algebroids, among them left symmetric hom-algebroids and symplectic hom-algebroids by providing some characterizations and geometric interpretations. Therefore, we introduce and study…

Representation Theory · Mathematics 2018-10-01 E. Peyghan , L. Nourmohammadifar , A. Makhlouf

In this paper we consider left-invariant pseudo-K\"{a}hler structures on six-dimensional nilpotent Lie algebras. The explicit expressions of the canonical complex structures are calculated, and the curvature properties of the associated…

Differential Geometry · Mathematics 2013-11-15 N. K. Smolentsev

We construct 4-dimensional Riemannian Lie groups carrying left-invariant conformal foliations with minimal leaves of codimension 2. We show that these foliations are holomorphic with respect to an (integrable) Hermitian structure which is…

Differential Geometry · Mathematics 2014-05-22 Sigmundur Gudmundsson

In this paper, the definition of Hom-Lie groups is given and one conntected component of Lie group $GL(V)$, which is not a subgroup of $GL(V)$, is a Hom-Lie group. More, we proved that there is a one-to-one relationship between Hom-Lie…

Rings and Algebras · Mathematics 2018-10-19 Zhen Xiong

We show the correspondence between left invariant flat projective structures on Lie groups and certain prehomogeneous vector spaces. Moreover by using the classification theory of prehomogeneous vector spaces, we classify complex Lie groups…

Differential Geometry · Mathematics 2014-06-16 Hironao Kato

We describe Hom-Lie structures on affine Kac-Moody and related Lie algebras, and discuss the question when they form a Jordan algebra.

Rings and Algebras · Mathematics 2019-07-09 Abdenacer Makhlouf , Pasha Zusmanovich

We pursuit the research line proposed in \cite{YZ-Gflat} about the classification of Hermitian manifolds whose $s$-Gauduchon connection $\nabla^s =(1-\frac{s}{2})\nabla^c + \frac{s}{2}\nabla^b$ is flat, where $s \in \mathbb{R}$ and…

Differential Geometry · Mathematics 2023-03-31 Luigi Vezzoni , Bo Yang , Fangyang Zheng

In this note, we show that the cohomology groups of (virtually) nilpotent K\"ahler groups are naturally endowed with a mixed Hodge structure. These structures make the Hopf morphisms into mixed Hodge structures morphisms. We illustrate this…

Algebraic Geometry · Mathematics 2009-06-16 Benoît Claudon

We study Lie bialgebra structures on \emph{flat metric Lie algebras}, that is, Lie algebras $(\mathfrak{g},\langle\cdot,\cdot\rangle)$ whose associated left-invariant Riemannian metric on the simply connected Lie group $G$ has zero…

Differential Geometry · Mathematics 2026-03-31 Amine Bahayou

We give the complete classification of left-invariant sub-Riemannian structures on three dimensional Lie groups in terms of the basic differential invariants. This classifications recovers other known classification results in the…

Differential Geometry · Mathematics 2017-07-31 Andrei Agrachev , Davide Barilari

We characterize unimodular solvable Lie algebras with Vaisman structures in terms of K\"ahler flat Lie algebras equipped with a suitable derivation. Using this characterization we obtain algebraic restrictions for the existence of Vaisman…

Differential Geometry · Mathematics 2020-04-06 Adrián Andrada , Marcos Origlia

In this paper we apply the hyper-K\"ahler quotient construction to Lie groups with a left invariant hyper-K\"ahler structure under the action of a closed abelian subgroup by left multiplication. This is motivated by the fact that some known…

Differential Geometry · Mathematics 2007-05-23 M. L. Barberis , I. Dotti , A. Fino

For a compact complex manifold, we introduce holomorphic foliations associated with certain abelian subgroups of the automorphism group. Such foliations are generalizations of holomorphic principal torus bundles. If there exists a…

Complex Variables · Mathematics 2018-01-22 Hiroaki Ishida , Hisashi Kasuya

We study Lie algebras admitting para-K\"ahler and hyper-para-K\"ahler structures. We give new characterizations of these Lie algebras and we develop many methods to build large classes of examples. Bai considered para-K\"ahler Lie algebras…

Differential Geometry · Mathematics 2013-12-10 Saïd Benayadi , Mohamed Boucetta