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We discuss Poisson structures on a weighted polynomial algebra $A:=\Bbbk[x, y, z]$ defined by a homogeneous element $\Omega\in A$, called a potential. We start with classifying potentials $\Omega$ of degree deg$(x)+$deg$(y)+$deg$(z)$ with…

Rings and Algebras · Mathematics 2023-09-14 Hongdi Huang , Xin Tang , Xingting Wang , James J. Zhang

In this paper, we shall study existence of weak solutions to complex Hessian equations. With appropriate assumptions, it is possible to obtain weak solutions in pluripotential sense.

Analysis of PDEs · Mathematics 2023-05-11 Wei Sun

An anti-associative algebra is a nonassociative algebra whose multiplication satisfies the identity a(bc)+(ab)c=0. Such algebras are nilpotent. We describe the free anti-associative algebras with a finite number of generators. Other types…

Rings and Algebras · Mathematics 2024-04-12 Elisabeth Remm

In this paper, we introduce the notion of a noncommutative Poisson bialgebra, and establish the equivalence between matched pairs, Manin triples and noncommutative Poisson bialgebras. Using quasi-representations and the corresponding…

Quantum Algebra · Mathematics 2021-02-09 Jiefeng Liu , Chengming Bai , Yunhe Sheng

We extend the framework of abstract algebraic logic to weak logics, namely logical systems which are not necessarily closed under uniform substitution. We interpret weak logics by algebras expanded with an additional predicate and we…

Logic · Mathematics 2026-01-16 Georgi Nakov , Davide Emilio Quadrellaro

We study the relative modular classes of Lie algebroids, and we determine their relationship with the modular classes of Lie algebroids with a twisted Poisson structure.

Differential Geometry · Mathematics 2007-05-23 Yvette Kosmann-Schwarzbach , Alan Weinstein

We study the categorical-algebraic condition that internal actions are weakly representable (WRA) in the context of varieties of (non-associative) algebras over a field. Our first aim is to give a complete characterization of action…

Category Theory · Mathematics 2025-02-24 Jose Brox , Xabier García-Martínez , Manuel Mancini , Tim Van der Linden , Corentin Vienne

We develop the notions of multiplicative Lie conformal and Poisson vertex algebras, local and non-local, and their connections to the theory of integrable differential-difference Hamiltonian equations. We establish relations of these…

Representation Theory · Mathematics 2019-05-01 Alberto De Sole , Victor G. Kac , Daniele Valeri , Minoru Wakimoto

Quadratic Poisson brackets on a vector space equipped with a bilinear multiplication are studied. A notion of a bracket compatible with the multiplication is introduced and an effective criterion of such compatibility is given. Among…

High Energy Physics - Theory · Physics 2009-10-28 A. A. Balinsky , Yu. Burman

Several classes of *-algebras associated to the action of an affine transformation are considered, and an investigation of the interplay between the different classes of algebras is initiated. Connections are established that relate…

Mathematical Physics · Physics 2009-03-16 Joakim Arnlind , Sergei Silvestrov

The concept of Poisson cohomology groups associated with Poisson manifolds is a part of the theory of Lie superalgebras of vector fields. Therefore, we abstracted them as Poisson-like cohomology groups for general Lie superalgebras. In…

Differential Geometry · Mathematics 2023-07-03 Kentaro Mikami , Tadayoshi Mizutani , Hajime Sato

We develop the bialgebra theory for two classes of non-associative algebras: nearly associative algebras and $LR$-algebras. In particular, building on recent studies that reveal connections between these algebraic structures, we establish…

Rings and Algebras · Mathematics 2025-02-25 Elisabete Barreiro , Saïd Benayadi , Carla Rizzo

This article develops the theory of fusion categories acting on algebras. We will demonstrate that weak Hopf algebra actions on algebras correspond to specific actions of fusion categories. As an application of this theory, we introduce a…

Quantum Algebra · Mathematics 2025-10-09 Alexander Betz

Recently, weak measurements have attracted a lot of interest as an experimental method for the investigation of non-classical correlations between observables that cannot be measured jointly. Here, I explain how the complex valued…

Quantum Physics · Physics 2013-05-02 Holger F. Hofmann

We generalize the notion of weakly mixing unitary representations to locally compact quantum groups, introducing suitable extensions of all standard characterizations of weak mixing to this setting. These results are used to complement the…

Operator Algebras · Mathematics 2017-07-11 Ami Viselter

This paper shows that a Poisson algebra is nilpotent if and only if it is both associative and Lie nilpotent and examines various properties of the nilradical and the solvable radical. It introduces a basic Frattini theory for dialgebras…

Rings and Algebras · Mathematics 2025-04-30 David A. Towers

Some connections between the deviation equations and weak equivalence principle are investigated.

General Relativity and Quantum Cosmology · Physics 2007-05-23 Bozhidar Z. Iliev

We develop methods for computation of Poisson vertex algebra cohomology. This cohomology is computed for the free bosonic and fermionic Poisson vertex (super)algebras, as well as for the universal affine and Virasoro Poisson vertex…

Representation Theory · Mathematics 2021-03-05 Bojko Bakalov , Alberto De Sole , Victor G. Kac

We investigate the notion of associated graded coalgebra (algebra) of a bialgebra with respect to a subbialgebra (quotient bialgebra) and characterize those which are bialgebras of type one in the framework of abelian braided monoidal…

Category Theory · Mathematics 2010-07-21 A. Ardizzoni , C. Menini

This is a survey of results on partially commutative groups and partially commutative algebras.

Group Theory · Mathematics 2020-11-24 Evgeny Poroshenko , Evgeny Timoshenko