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We give a comprehensive study of the so-called \textit{semi-tripotent rings} obtaining their new and non-trivial characterization as well as a complete description in terms of sums and products of some special elements. Particularly, we…

Rings and Algebras · Mathematics 2025-05-27 Ahmad Moussavi , Peter Danchev , Arash Javan , Omid Hasanzadeh

We present new characterizations of the rings in which every element is the sum of two idempotents and a nilpotent that commute, and the rings in which every element is the sum of two tripotents and a nilpotent that commute. We prove that…

Rings and Algebras · Mathematics 2022-02-07 Huanyin Chen , Marjan Sheibani Abdolyousefi

In this paper, we introduce a class of quasipolar rings which is a generalization of $J$-quasipolar rings. Let $R$ be a ring with identity. An element $a \in R$ is called {\it $\delta$-quasipolar} if there exists $p^2 = p\in comm^2(a)$ such…

Rings and Algebras · Mathematics 2018-12-11 T. Pekacar Calci , S. Halicioglu , A. Harmanci

We define and examine the class of {\it strongly \( J^{\#} \)-clean rings} consisting of those rings $R$ such that each element of $R$ is the sum of an idempotent from $R$ and an element from $J^{\#}(R)$ that commute with each other. More…

Rings and Algebras · Mathematics 2025-08-26 Peter Danchev , Gholamreza Karamali , Omid Hasanzadeh , Mehrdad Esfandiar

This paper, we consider some properties of rings via q-potent and periodic elements. In this paper we give some results of rings in which every element is a sum of an idempotent and a q-potent that commute; periodic rings and k-potent…

Rings and Algebras · Mathematics 2017-02-28 Abyzov Adel , Truong Cong Quynh

This study explores in-depth the structure and properties of the so-called {\it strongly $\Delta$-clean rings}, that is a novel class of rings in which each ring element decomposes into a sum of a commuting idempotent and an element from…

Rings and Algebras · Mathematics 2025-05-27 Ahmad Moussavi , Peter Danchev , Arash Javan , Omid Hasanzadeh

We define and consider in-depth the so-called $C\Delta$ rings as those rings $R$ whose elements are a sum of an element in $C(R)$ and of an element in $\Delta(R)$. Our achieved results somewhat strengthen these recently obtained by…

Rings and Algebras · Mathematics 2025-03-06 Peter Danchev , Arash Javan , Omid Hasanzadeh , Ahmad Moussavi

We prove that an integral Jacobson radical ring is always nil, which extends a well known result from algebras over fields to rings. As a consequence we show that if every element x of a ring R is a zero of some polynomial p_x with integer…

Rings and Algebras · Mathematics 2019-08-14 N. Stopar

This study provides a comprehensive investigation into the structure and properties of a novel class of rings known as $\Delta$-quasipolar rings, in which for every $a\in R$ there exisxt $p^2=p \in comm^2(a)$ such that $a+p \in \Delta(R)$.…

Rings and Algebras · Mathematics 2025-09-18 Tugce Pekacar Calci , Serhat Emirhan Soycan

We define and explore in-depth the notion of {\it UQ rings} by showing their important properties and by comparing their behavior with that of the well-known classes of UU rings and JU rings, respectively. Specifically, among the other…

Rings and Algebras · Mathematics 2024-04-17 Peter Danchev , Arash Javan , Omid Hasanzadeh , Ahmad Moussavi

We investigate the notion of \textit{semi-nil clean} rings, defined as those rings in which each element can be expressed as a sum of a periodic and a nilpotent element. Among our results, we show that if $R$ is a semi-nil clean NI ring,…

Rings and Algebras · Mathematics 2024-09-04 M. H. Bien , P. V. Danchev , M. Ramezan-Nassab

In this paper, we introduce a new class of rings whose elements are a sum of a central element and a nilpotent element, namely, a ring $R$ is called$CN$ if each element $a$ of $R$ has a decomposition $a = c + n$ where $c$ is central and $n$…

Rings and Algebras · Mathematics 2020-05-27 Yosum Kurtulmaz , Abdullah Harmancı

In this paper, we introduce a class of rings which is a generalization of reflexive rings and $J$-reversible rings. Let $R$ be a ring with identity and $J(R)$ denote the Jacobson radical of $R$. A ring $R$ is called {\it $J$-reflexive} if…

Rings and Algebras · Mathematics 2022-10-04 M. B. Calci , H. Chen , S. Halicioglu

In this paper, we investigate the structural and characterizing properties of the so-called {\it 2-UQ rings}, that are rings such that the square of every unit is the sum of an idempotent and a quasi-nilpotent element that commute with each…

Rings and Algebras · Mathematics 2025-09-16 Shahram Najafi , Ahmad Moussavi , Peter Danchev

In this paper, we introduce a new class of rings calling them {\it 2-UNJ rings}, which generalize the well-known 2-UJ, 2-UU and UNJ rings. Specifically, a ring $R$ is called 2-UNJ if, for every unit $u$ of $R$, the inclusion $u^2 \in 1 +…

Rings and Algebras · Mathematics 2025-08-12 Zari Vesali Mahmood , Ahmad Moussavi , Peter Danchev

In this paper, we study a new class of rings, called $\sqrt{J}$-clean rings. A ring in which every element can be expressed as the addition of an idempotent and an element from $\sqrt{J(R)}$ is called a $\sqrt{J}$-clean ring. Here,…

Rings and Algebras · Mathematics 2025-10-30 Dinesh Udar , Shiksha Saini

Armendariz and semicommutative rings are generalizations of reduced rings. In \cite{IN}, I.N. Herstein introduced the notion of a hypercenter of a ring to generalize the center subclass. For a ring $R$, an element $a \in R$ is called…

Rings and Algebras · Mathematics 2025-01-07 Nazeer Ansari , Kh. Herachandra singh

Let $R$ be a ring with identity and $J(R)$ be its Jacobson radical. Assume that $a\in R$ is $(b,c)$-invertible and $j_a,j_b,j_c\in J(R)$. This paper provides necessary and sufficient conditions for $a+j_a$ to be $(b+j_b,c+j_c)$-invertible.…

Rings and Algebras · Mathematics 2025-10-02 Yukun Zhou , Nestor Thome

Let $n \in \NN$ and let $q=p^r$ be an odd prime power. Let $R$ be a finite commutative local principal ring of cardinality $q^{n}$ with $R/J(R) \simeq GF(q)$. We study the conjugation action of the group of all unipotent elements in the…

Rings and Algebras · Mathematics 2025-12-24 David Dolžan

A ring $R$ is a UU ring if every unit is unipotent, or equivalently if every unit is a sum of a nilpotent and an idempotent that commute. These rings have been investigated in C\u{a}lug\u{a}reanu \cite{C} and in Danchev and Lam \cite{DL}.…

Rings and Algebras · Mathematics 2017-10-10 Arezou Karimi-Mansoub , Tamer Kosan , Yiqiang Zhou
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