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The aim of this paper is to develop the theory of Hom-coalgebras and related structures. After reviewing some key constructions and examples of quasi-deformations of Lie algebras involving twisted derivations and giving rise to the class of…

Rings and Algebras · Mathematics 2008-11-24 Abdenacer Makhlouf , Sergei Silvestrov

The hamiltonian structures for quartic oscillator are considered. All structures admitting quadratic hamiltonians are classified.

Quantum Physics · Physics 2007-05-23 Katarzyna Bolonek , Piotr Kosinski

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

Operadic Lax representations for the harmonic oscillator are used to construct the quantum counterparts of 3d real Lie algebras. The Jacobians of the corresponding quantum algebras are calculated.

Mathematical Physics · Physics 2009-12-01 E. Paal , J. Virkepu

The quantum damped harmonic oscillator is described by the master equation with usual Lindblad form. The equation has been solved completely by us in arXiv : 0710.2724 [quant-ph]. To construct the general solution a few facts of…

Quantum Physics · Physics 2015-05-13 Kazuyuki Fujii

We study the Lie algebra structure of the Onsager algebra from the ideal theoretic point of view. A structure theorem of ideals in the Onsager algebra is obtained with the connection to the finite-dimensional representations. We also…

Statistical Mechanics · Physics 2009-10-31 Etsuro Date , Shi-shyr Roan

The oscillator algebra of Pegg-Barnett (P-B) oscillator with a finite-dimensional number-state space is investigated in this note. It is shown that the Pegg-Barnett oscillator possesses the su($n$) Lie algebraic structure. Additionally, we…

Quantum Physics · Physics 2007-05-23 Jian Qi Shen

A coassociative Lie algebra is a Lie algebra equipped with a coassociative coalgebra structure satisfying a compatibility condition. The enveloping algebra of a coassociative Lie algebra can be viewed as a coalgebraic deformation of the…

Rings and Algebras · Mathematics 2013-04-25 D. -G. Wang , J. J. Zhang , G. Zhuang

We classify all integrable complex structures on 6-dimensional Lie algebras of the form $\mathfrak{g}\times\mathfrak{g}$.

Differential Geometry · Mathematics 2018-03-09 Andrzej Czarnecki

A set of coupled complex Ginzburg-landau type amplitude equations which operates near a Hopf-Turing instability boundary is analytically investigated to show localized oscillatory patterns. The spatial structure of those patterns are the…

Pattern Formation and Solitons · Physics 2007-05-23 A. Bhattacharyay

We characterize the structure of a seven-dimensional Lie algebra with non-trivial center endowed with a closed G$_2$-structure. Using this result, we classify all unimodular Lie algebras with non-trivial center admitting closed…

Differential Geometry · Mathematics 2025-01-03 Anna Fino , Alberto Raffero , Francesca Salvatore

We study geometric quantization of the harmonic oscillator in terms of a singular real polarization given by fibres of the energy momentum map.

Symplectic Geometry · Mathematics 2016-07-20 Richard Cushman , Jedrzej Sniatycki

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

On the base of Lie algebraic and differential geometry methods, a wide class of multidimensional nonlinear integrable systems is obtained, and the integration scheme for such equations is proposed.

High Energy Physics - Theory · Physics 2008-02-03 A. V. Razumov , M. V. Saveliev

From the definition and properties of unital hom-associative algebras, and the use of the Kaplansky's constructions, we develop new algebraic structures called 2-hom-associative bialgebras, 2-hom-bialgebras, and 2-2-hom-bialgebras. Besides,…

Rings and Algebras · Mathematics 2018-01-18 Mahouton Norbert Hounkonnou , Gbevewou Damien Houndedji

In this paper we introduce a new method for constructing coherent states for 2D harmonic oscillators. In particular, we focus on both the isotropic and commensurate anisotropic instances of the 2D harmonic oscillator. We define a new set of…

Quantum Physics · Physics 2019-11-19 James Moran , Véronique Hussin

The first aim of this paper is to show that any finite-dimensional reductive Lie algebra and its finite-dimensional completely reducible representation can be embedded into some PC Lie algebra. The second aim is to find the structure of a…

Representation Theory · Mathematics 2017-03-06 Nagatoshi Sasano

A Lie algebra is said to be metric if it admits a symmetric invariant and nondegenerate bilinear form. The harmonic oscillator algebra, which arises in the quantum mechanical description of a harmonic oscillator, is the smallest solvable…

Rings and Algebras · Mathematics 2023-09-01 Pilar Benito , Jorge Roldán-López

We describe the solutions to a family of rotationally symmetric second order partial differential equations in the complex plane that arises from a four-dimensional complex Lie algebra whose spanning set generates the algebra from which…

Classical Analysis and ODEs · Mathematics 2025-11-05 Markus Klintborg

In this paper is discussed description of some algebraic structures in quantum theory by using formal recursive constructions with "complex Poincar\'e group" ISO(4,C).

Mathematical Physics · Physics 2007-05-23 Alexander Yu. Vlasov