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We developed a new proper method for classifying $n$-dimensional derived Jordan algebras, and apply it to the classification of $3$-dimensional derived Jordan algebras. As a byproduct, we have the algebraic classification of $3$-dimensional…

Rings and Algebras · Mathematics 2026-04-14 Hani Abdelwahab , Ivan Kaygorodov , Roman Lubkov

Bicommutative algebras are nonassociative algebras satisfying the polynomial identities of right- and left-commutativity (xy)z=(xz)y and x(yz)=y(xz). We study subvarieties of the variety of all bicommutative algebras over a field of…

Rings and Algebras · Mathematics 2019-01-18 Vesselin Drensky

A probability space is a pair ($\mathcal{A},\phi $) where $\mathcal{A}$ is an algebra and $\phi $ a state on the algebra. In classical probability $\mathcal{A}$ is the algebra of linear combinations of indicator functions on the sample…

Probability · Mathematics 2019-12-12 R. Vilela Mendes

Leibniz algebras are certain generalization of Lie algebras. In this paper we give the classification of four dimensional non-Lie nilpotent Leibniz algebras. We use the canonical forms for the congruence classes of matrices of bilinear…

Rings and Algebras · Mathematics 2015-11-24 Ismail Demir , Kailash C. Misra , Ernie Stitzinger

The commutative algebra of functions on a manifold is extended to a noncommutative algebra by considering its tensor product with the algebra of nxn complex matrices. Noncommutative geometry is used to formulate an extension of the…

General Relativity and Quantum Cosmology · Physics 2011-04-20 J. Madore , J. Mourad

One of the major open problems in noncommutative algebraic geometry is the classification of noncommutative projective surfaces (or, slightly more generally, of noetherian connected graded domains of Gelfand-Kirillov dimension 3). Earlier…

Rings and Algebras · Mathematics 2016-11-18 D. Rogalski , S. J. Sierra , J. T. Stafford

A very first step to develop non-commutative algebraic geometry is the arithmetic of polynomials in non-commuting variables over a commutative field, that is, the study of elements in free associative algebras. This investigation is…

Rings and Algebras · Mathematics 2024-03-27 Pham Ngoc Ánh , Francesca Mantese

The underlying algebra for a noncommutative geometry is taken to be a matrix algebra, and the set of derivatives the adjoint of a subset of traceless matrices. This is sufficient to calculate the dual 1-forms, and show that the space of…

q-alg · Mathematics 2009-10-30 Jonathan Gratus

We study gradings by noncommutative groups on finite dimensional Lie algebras over an algebraically closed field of characteristic zero. It is shown that if $L$ is gradeg by a non-abelian finite group $G$ then the solvable radical $R$ of…

Rings and Algebras · Mathematics 2016-02-19 Dušan Pagon , Dušan Repovš , Mikhail Zaicev

This is a survey on the geometric classification of different varieties of algebras (nilpotent, nil-, associative, commutative associative, cyclic associative, Jordan, Kokoris, standard, noncommutative Jordan, commutative power-associative,…

Rings and Algebras · Mathematics 2024-12-11 Ivan Kaygorodov , Mykola Khrypchenko , Pilar Páez-Guillán

The classification, up to isomorphism, of two-dimensional (not necessarily commutative) Jordan algebras over algebraically closed fields and $\mathbb{R}$ is presented in terms of their matrices of structure constants.

Rings and Algebras · Mathematics 2018-12-10 H. Ahmed , U. Bekbaev , I. Rakhimov

We call an operator algebra A {\em reversible} if A with reversed multiplication is also an abstract operator algebra (in the modern operator space sense). This class of operator algebras is intimately related to the {\em symmetric operator…

Operator Algebras · Mathematics 2025-11-24 David P. Blecher

A one parameter set of noncommutative complex algebras is given. These may be considered deformation quantisation algebras. The commutative limit of these algebras correspond to the algebra of polynomial functions over a manifold or…

Quantum Algebra · Mathematics 2009-11-10 Jonathan Gratus

A new class of nonassociative algebras, Vidinli algebras, is defined based on recent work of Co\c{s}kun and Eden. These algebras are conic (or quadratic) algebras with the extra restriction that the commutator of any two elements is a…

Rings and Algebras · Mathematics 2026-02-02 Alberto Elduque , Javier Rández-Ibáñez

We define and study a noncommutative Fourier transform on every homogeneous complex bounded domain. We then give an application in noncommutative differential geometry by defining noncommutative Baumslag-Solitar tori.

Functional Analysis · Mathematics 2016-01-28 Pierre Bieliavsky , Victor Gayral , Axel de Goursac , Florian Spinnler

We describe the class of polynomial functions which are barycentrically associative over an infinite commutative integral domain.

Rings and Algebras · Mathematics 2015-09-14 Jean-Luc Marichal , Pierre Mathonet , Jörg Tomaschek

For a noncommutative configuration space whose coordinate algebra is the universal enveloping algebra of a finite dimensional Lie algebra, it is known how to introduce an extension playing the role of the corresponding noncommutative phase…

Quantum Algebra · Mathematics 2016-12-13 Stjepan Meljanac , Zoran Škoda , Martina Stojić

We present some old and new results on a class of invariant spaces of holomorphic functions on symmetric domains, both in their circular bounded realizations and in their unbounded realizations as Siegel domains of type II. These spaces…

Complex Variables · Mathematics 2026-04-21 Mattia Calzi

We here present rudiments of an approach to geometric actions in noncommutative algebraic geometry, based on geometrically admissible actions of monoidal categories. This generalizes the usual (co)module algebras over Hopf algebras which…

Algebraic Geometry · Mathematics 2009-09-22 Zoran Škoda

In the framework of quantum group theory we obtain a noncommutative analog for the algebra of functions in a bounded symmetric domain, endowed with a whole symmetry. Also we provide a construction for its faithfull irreducible…

Quantum Algebra · Mathematics 2007-05-23 Olga Bershtein