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Symmetric Zinbiel superalgebras

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (1)

The notion of symmetric Zinbiel superalgebras is introduced. We prove that the nilpotency index of a symmetric Zinbiel superalgebra is not greater tha......

Cohomologies of Reynolds operators on n-Lie algebras

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (2)

In this paper, first we introduce the notion of a Reynolds operator on an n-Lie algebra and illustrate the relationship between Reynolds operators and......

Universal birational invariants and A1-homology

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (2)

We prove that the functor of zeroth A(1)-homology is universal as a functorial birational invariant of smooth proper varieties taking values in a cate......

On the monoid of partial isometries of a finite star graph

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (3)

In this paper we consider the monoid DPSn of all partial isometries of a star graph S-n with n vertices. Our main objectives are to determine the rank......

On prime and radical subacts of acts over semigroups

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (5)

This study aims at giving some new results about the prime and radical subacts of any act over a semigroup S. The notion of prime radical is used to d......

O-operators and related structures on Leibniz algebras

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (5)

An O-operator has been used to extend a Leibniz algebra by its representation. In this paper, we investigate several structures related to O-operators......

Description of finite-dimensional inner Rickart and Baer Jordan algebras

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (6)

In the present paper we study the Jordan counterparts of Rickart and Baer *- algebras, i.e., inner RJ-algebras and inner BJ-algebras and prove that a ......

Perfect monoids with zero and categories of S-acts

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (7)

In this paper, we study the relationship between the two main categories of S-acts for a monoid S with zero from the viewpoint of existence of project......

2-local Lie triple isomorphisms of nest algebras

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (9)

Let N be a nontrivial nest on a complex separable Hilbert space H with dimH > 2, and AlgN be the associated nest algebra. Suppose that d : AlgN ? A......

Combinatorial bases of standard modules of twisted affine Lie algebras in types A2l-1(2) and Dl+1(2): rectangular highest weights

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (9)

We consider the standard modules of rectangular highest weights of affine Lie algebras in types A(2l-1)((2)) and D-l+1((2)) . By using vertex algebrai......

Auslander-Reiten n-exangles and morphisms determined by objects in n-exangulated categories.R1

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (10)

Let k be commutative artinian ring and (C, E, s) be an Ext-finite, Krull-Schmidt n-exangulated category. We define two additive subcategories Cr and C......

Operated groups, differential groups and Rota-Baxter groups with an emphasis on the free objects

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (11)

Groups with various types of operators, in particular the recently introduced Rota-Baxter groups, have generated renowned interest with close connecti......

On groups with same number of centralizers

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (10)

In this paper, among other results, we give some sufficient conditions for every non-abelian subgroup of a group to be isoclinic with the group itself......

On the word problem for weakly compressible monoids

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (11)

We study the language-theoretic properties of the word problem, in the sense of Duncan & Gilman, of weakly compressible monoids, as defined by Adi......

Half-isomorphisms of automorphic loops

期刊: COMMUNICATIONS IN ALGEBRA, 2023; 51 (12)

A half-isomorphism f : G ? K between multiplicative systems G and K is a bijection from G onto K such that f(ab) ? {f(a)f(b),f(b)f(a)} for any a, b ? ......

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