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The notion of a complete Boolean algebra, although completely legitimate in constructive mathematics, fails to capture some natural structures such as the lattice of subsets of a given set. Sambin's notion of an overlap algebra, although…

Logic in Computer Science · Computer Science 2023-06-22 Francesco Ciraulo , Michele Contente

We present a unified framework for representing commutative rings through affine algebraic theories and Boolean rings through hyperaffine algebraic theories. This yields categorical equivalences between these theories and, respectively,…

Logic · Mathematics 2026-03-02 Arturo De Faveri

In universal algebraic geometry, an algebra is called an equational domain if the union of two algebraic sets is algebraic. We characterize equational domains, with respect to polynomial equations, inside congruence permutable varieties,…

Rings and Algebras · Mathematics 2024-07-08 Erhard Aichinger , Mike Behrisch , Bernardo Rossi

The author has recently introduced an abstract algebraic framework of analogical proportions within the general setting of universal algebra. This paper studies analogical proportions in the boolean domain consisting of two elements 0 and 1…

Artificial Intelligence · Computer Science 2024-08-07 Christian Antić

In recent years, the notion of characteristic polynomial of representations of Lie algebras has been widely studied. This paper provides more properties of these characteristic polynomials. For simple Lie algebras, we characterize the…

Representation Theory · Mathematics 2023-08-10 Korkeat Korkeathikhun , Borworn Khuhirun , Songpon Sriwongsa , Keng Wiboonton

We define a class of associative algebras generalizing 'clannish algebras', as introduced by the second author, but also incorporating semilinear structure, like a skew polynomial ring. Clannish algebras generalize the well known 'string…

Rings and Algebras · Mathematics 2022-09-08 Raphael Bennett-Tennenhaus , William Crawley-Boevey

An infinite family of Boolean polynomials which correspond to the discrete average maps, defined in [2], is constructed and their algebraic and combinatorial properties are investigated. They turn out to be balanced, and some recurrence…

Combinatorics · Mathematics 2021-08-17 Fumio Hazama

We prove that every quasicontinuous domain that fails to be quasialgebraic admits the unit interval [0, 1] as its monotone Lawson-continuous image. As a result, every countable quasicontinuous domain is quasialgebraic.

General Topology · Mathematics 2025-10-31 Xiaoquan Xu

We classify the 6-dimensional Lie algebras that can be endowed with an abelian complex structure and parameterize, on each of these algebras, the space of such structures up to holomorphic isomorphism.

Rings and Algebras · Mathematics 2024-07-30 A. Andrada , M. L. Barberis , I. G. Dotti

There exists a complete atomless Boolean algebra that has no proper atomless complete subalgebra.

Logic · Mathematics 2009-09-25 Thomas Jech , Saharon Shelah

We introduce the notion of weakly associative algebra and its relations with the notion of nonassociative Poisson algebras.

Rings and Algebras · Mathematics 2020-05-27 Elisabeth Remm

Boole polynomials play an important role in the area of number theory, algebra and umbral calculus. In this paper, we investigate some properties of Boole polynomials and consider Witt-type formulas for the Boole numbers and polynomials.…

Number Theory · Mathematics 2013-10-31 Dae San Kim , Taekyun Kim

We investigate models of algebraic theories in the category of cocommutative coalgebras over a field. We establish some of their categorical properties, similar to those of algebraic varieties. We introduce a class of categories of…

Category Theory · Mathematics 2025-11-12 Maria Bevilacqua

It is a small step toward the Koszul-type algebras. The piecewise-Koszul algebras are, in general, a new class of quadratic algebras but not the classical Koszul ones, simultaneously they agree with both the classical Koszul and higher…

Rings and Algebras · Mathematics 2011-09-20 Jiafeng Lu , Jiwei He , Diming Lu

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

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

The concepts of Boolean metric space and convex combination are used to characterize polynomial maps in a class of commutative Von Neumann regular rings including Boolean rings and p-rings, that we have called CFG-rings. In those rings, the…

Commutative Algebra · Mathematics 2009-03-17 Antonio Avilés

This work adapts the equivalent definitions of division algebras over a field into multiple types of division algebras in a monoidal category. Examples and consequences of these definitions are then established in various monoidal settings.

Quantum Algebra · Mathematics 2025-11-18 Jacob Kesten , Chelsea Walton

We classify nilpotent associative algebras of dimensions up to 4 over any field. This is done by constructing the nilpotent associative algebras as central extensions of algebras of smaller dimension, analogous to methods known for…

Rings and Algebras · Mathematics 2017-05-23 Willem A. de Graaf

An algebra is said to be a unary Leibniz algebra if every one-generated subalgebra is a Leibniz algebra. An algebra is said to be a binary Leibniz algebra if every two-generated subalgebra is a Leibniz algebra. We give characterizations of…

Rings and Algebras · Mathematics 2020-10-27 N. A. Ismailov , A. S. Dzhumadil'daev

In this paper, we realize C*-algebras of generalized Boolean dynamical systems as partial crossed products. Reciprocally, we give some sufficient conditions for a partial crossed product to be isomorphic to a C*-algebra of a generalized…

Operator Algebras · Mathematics 2022-02-07 Gilles G. de Castro , Eun Ji Kang