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We characterise ideals in two-dimensional regular local rings that arise as ideals of maximal minors of indecomposable integrally closed modules of rank two.

Commutative Algebra · Mathematics 2023-04-20 Futoshi Hayasaka , Vijay Kodiyalam

In this paper, we will be delving deeper into the connection between the rough theory and the ring theory precisely in the principle and maximal ideal. The rough set theory has shown by Pawlak as good formal tool for modeling and processing…

General Mathematics · Mathematics 2020-12-08 Faraj. A. Abdunabi

The authors introduced the notion of $p_g$-ideals for two-dimensional excellent normal local domain over an algebraicaly closed field in terms of resolution of singularities. In this note, we give several ring-theoretic characterization of…

Commutative Algebra · Mathematics 2025-12-16 Tomohiro Okuma , Kei-ichi Watanabe , Ken-ichi Yoshida

In this note, we define and investigate ideal covering numbers of associative rings (not assumed to be commutative or unital): three invariants defined as the minimal number of proper left, right, or two-sided ideals whose union equals the…

Rings and Algebras · Mathematics 2025-08-15 Malcolm Hoong Wai Chen

We study the probability that the product of two randomly chosen elements in a finite ring $R$ is equal to some fixed element $x \in R$. We calculate this probability for semisimple rings and some special classes of local rings, and find…

Rings and Algebras · Mathematics 2025-04-18 David Dolžan

Let M be a fixed left R-module. For a left R-module X, we introduce the notion of M-prime (resp. M-semiprime) submodule of X such that in the case M=R, which coincides with prime (resp. semiprime) submodule of X. Other concepts encountered…

Rings and Algebras · Mathematics 2012-02-03 John A. Beachy , Mahmood Behboodi , Faezeh Yazdi

Let R be a multiplicative hyperring with identity. In this paper, we define the concept of J-prime hyperideals which is a generalization of n-hyperideals and we will show some properties of them. Then we extend the notion of J-prime to…

Commutative Algebra · Mathematics 2021-10-15 M. Anbarloei

In this survey, we describe two different approaches to constructing affine schemes for commutative semirings: one based on prime ideals, and another based on prime kernels (also called subtractive ideals). We then explain how these two…

Algebraic Geometry · Mathematics 2026-01-21 Roberto Gualdi , Arne Kuhrs , Mayo Mayo Garcia , Xavier Xarles

We develop a general ring theory in the o-minimal setting culminating in a description of all the definable rings in an arbitrary o-minimal structure. We show that every definably connected ring with non-trivial multiplication defines an…

Logic · Mathematics 2025-03-05 Annalisa Conversano

In this article, we introduce and study the concept of $\phi$-2-absorbing quasi primary ideals in commutative rings. Let $R$ be a commutative ring with a nonzero identity and $L(R)$ be the lattice of all ideals of $R$. Suppose that…

Commutative Algebra · Mathematics 2020-05-19 Emel Aslankarayigit Ugurlu , Unsal Tekir , Suat Koc

This paper purposes to characterize Noetherian local rings $(A, {\mathfrak m})$ of positive dimension such that the first Hilbert coefficients of ${\mathfrak m}$-primary ideals in $A$ range among only finitely many values. Examples are…

Commutative Algebra · Mathematics 2013-12-24 Asuki Koura , Naoki Taniguchi

We present an overview to the approximation property, paying especial attention to the recent results relating the approximation property to ideals of linear operators and Lipschitz ideals. We complete the paper with some new results on…

Functional Analysis · Mathematics 2016-09-12 Pilar Rueda , Enrique A. Sanchez-Perez

Polyomino ideals, defined as the ideals generated by the inner $2$-minors of a polyomino, are a class of binomial ideals whose algebraic properties are closely related to the combinatorial structure of the underlying polyomino. We provide a…

Commutative Algebra · Mathematics 2026-02-10 Francesco Navarra , Ayesha Asloob Qureshi

In the first section of the present work, we introduce the concept of pseudocomplementation for semirings and show semiring version of some known results in lattice theory. We also introduce semirings with pc-functions and prove some…

Commutative Algebra · Mathematics 2018-04-17 Peyman Nasehpour

In this paper, in the first we give definitions of some classes of division rings which strictly contain the class of centrally finite division rings. One of our main purpose is to construct non-trivial examples of rings of new defined…

Rings and Algebras · Mathematics 2011-03-16 Bui Xuan Hai , Mai Hoang Bien , Trinh Thanh Deo

Primary hyperideals have been introduced and studied in multiplicative hyperrings. In this paper, we intend to study extensively primary hyperideals of multiplicative hyperrings with absorbing zero and prove some results regarding them.…

Commutative Algebra · Mathematics 2018-03-28 Neslihan Suzen , Gursel Yesilot

We develop almost ring theory, which is a domain of mathematics somewhere halfway between ring theory and category theory (whence the difficulty of finding appropriate MSC-class numbers). We apply this theory to valuation theory and to…

Algebraic Geometry · Mathematics 2007-05-23 Ofer Gabber , Lorenzo Ramero

We deal with classes of prime ideals whose associated graded ring is isomorphic to the Rees algebra of the conormal module in order to describe the divisor class group of the Rees algebra and to examine the normality of the conormal module.

Commutative Algebra · Mathematics 2007-05-23 Jooyoun Hong

The main result in this paper is to supply a recursive formula, on the number of minimal primes, for the colength of a fractional ideal in terms of the maximal points of the value set of the ideal itself. The fractional ideals are taken in…

Algebraic Geometry · Mathematics 2019-07-26 Edison Marcavillaca Niño de Guzmán , Abramo Hefez

In this article we introduce the concept of almost $\mathcal{P}$-numbers. We survey the existing results in literature for almost cyclic numbers and give characterizations for almost abelian and almost nilpotent numbers proving these two…

Group Theory · Mathematics 2024-08-19 Iulia Cătălina Pleşca , Marius Tărnăuceanu