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Homogeneous spaces of unsolvable Lie groups that do not admit equiaffine connections of nonzero curvature [PDF]

open access: yesИзвестия Саратовского университета. Новая серия. Серия Математика. Механика. Информатика, 2023
An important subclass among homogeneous spaces is formed by isotropically-faithful homogeneous spaces, in particular, this subclass contains all homogeneous spaces admitting invariant affine connection.
Mozhey, Natalya Pavlovna
doaj   +1 more source

Advances in the Theory of Compact Groups and Pro-Lie Groups in the Last Quarter Century

open access: yesAxioms, 2021
This article surveys the development of the theory of compact groups and pro-Lie groups, contextualizing the major achievements over 125 years and focusing on some progress in the last quarter century.
Karl H. Hofmann, Sidney A. Morris
doaj   +1 more source

Baker–Campbell–Hausdorff–Dynkin Formula for the Lie Algebra of Rigid Body Displacements

open access: yesMathematics, 2020
The paper proposes, for the first time, a closed form of the Baker–Campbell–Hausdorff–Dynkin (BCHD) formula in the particular case of the Lie algebra of rigid body displacements.
Daniel Condurache, Ioan-Adrian Ciureanu
doaj   +1 more source

Survey on Lie Group Machine Learning

open access: yesBig Data Mining and Analytics, 2020
Lie group machine learning is recognized as the theoretical basis of brain intelligence, brain learning, higher machine learning, and higher artificial intelligence. Sample sets of Lie group matrices are widely available in practical applications.
Mei Lu, Fanzhang Li
doaj   +1 more source

Geometry of Tangent Poisson–Lie Groups

open access: yesMathematics, 2023
Let G be a Poisson–Lie group equipped with a left invariant contravariant pseudo-Riemannian metric. There are many ways to lift the Poisson structure on G to the tangent bundle TG of G.
Ibrahim Al-Dayel   +2 more
doaj   +1 more source

On the Solution of the Schrödinger Equation with Position-Dependent Mass

open access: yesUniverse, 2020
We have considered the Iwasawa and Gauss decompositions for the Lie group SL(2,R). According to these decompositions, the Casimir operators of the group and the Hamiltonians with position-dependent mass were expressed.
Mehmet Sezgin
doaj   +1 more source

Local Lie groups and local top spaces

open access: yesJournal of the Egyptian Mathematical Society, 2016
In this paper a generalization of local Lie groups, using the concept of top spaces, is given and some theorems about the relation between this generalization and local Lie groups are provided.
N. Ebrahimi
doaj   +1 more source

Multi-Stage Meta-Learning for Few-Shot with Lie Group Network Constraint

open access: yesEntropy, 2020
Deep learning has achieved many successes in different fields but can sometimes encounter an overfitting problem when there are insufficient amounts of labeled samples.
Fang Dong, Li Liu, Fanzhang Li
doaj   +1 more source

An example of a non-Borel locally-connected finite-dimensional topological group

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2017
According to a classical theorem of Gleason and Montgomery, every finite-dimensional locally path-connected topological group is a Lie group. In the paper for every $n\ge 2$ we construct a locally connected subgroup $G\subset{\mathbb R}^{n+1}$ of ...
I.Ya. Banakh, T.O. Banakh, M.I. Vovk
doaj   +1 more source

Einstein warped product spaces on Lie groups

open access: yesCubo, 2022
We consider a compact Lie group with bi-invariant metric, coming from the Killing form. In this paper, we study Einstein warped product space, $M = M_1 \times_{f_1} M_2$ for the cases, $(i)$ $M_1$ is a Lie group $(ii)$ $M_2$ is a Lie group and $(iii ...
Buddhadev Pal   +2 more
doaj   +1 more source

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