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Let $R$ be a Mori domain with complete integral closure $\widehat R$, nonzero conductor $\mathfrak f = (R \ :\ \widehat R)$, and suppose that both $v$-class groups $\mathcal C_v (R)$ and $\mathcal C_v (\widehat R)$ are finite. If…

Commutative Algebra · Mathematics 2020-04-15 Qinghai Zhong

An integral domain $D$ is a $v$--domain if, for every finitely generated nonzero (fractional) ideal $F$ of $D$, we have $(FF^{-1})^{-1}=D$. The $v$--domains generalize Pr\"{u}fer and Krull domains and have appeared in the literature with…

Commutative Algebra · Mathematics 2009-12-14 Marco Fontana , Muhammad Zafrullah

Let $R$ be a commutative ring with identity. The structure theorem says that $R$ is a PIR (resp., UFR, general ZPI-ring, $\pi$-ring) if and only if $R$ is a finite direct product of PIDs (resp., UFDs, Dedekind domains, $\pi$-domains) and…

Commutative Algebra · Mathematics 2023-03-13 Gyu Whan Chang , Jun Seok Oh

Let $D$ be an integral domain with quotient field $K$. The $b$-operation that associates to each nonzero $D$-submodule $E$ of $K$, $E^b := \bigcap\{EV \mid V valuation overring of D\}$, is a semistar operation that plays an important role…

Commutative Algebra · Mathematics 2011-05-18 Marco Fontana , Giampaolo Picozza

Let $R$ be a one-dimensional, local, Noetherian domain, $\R$ the integral closure of $R$ in its quotient field and $v(R)$ the value set defined by the usual valuation. The aim of the paper is to study the non-negative invariant…

Commutative Algebra · Mathematics 2009-06-01 A. Oneto , E. Zatini

Among the finitely generated modules over a Noetherian ring R, the semidualizing modules have been singled out due to their particularly nice duality properties. When R is a normal domain, we exhibit a natural inclusion of the set of…

Commutative Algebra · Mathematics 2007-05-23 Sean Sather-Wagstaff

Let $R$ be a ring and let $\mathcal C$ be a small class of right $R$-modules which is closed under finite direct sums, direct summands, and isomorphisms. Let $\mathcal V (\mathcal C)$ denote a set of representatives of isomorphism classes…

Commutative Algebra · Mathematics 2015-07-28 Nicholas R. Baeth , Alfred Geroldinger , David J. Grynkiewicz , Daniel Smertnig

In this article, we show that Mori domains, pseudo-valuation domains, and $n$-absorbing ideals, the three seemingly unrelated notions in commutative ring theory, are interconnected. In particular, we prove that an integral domain $R$ is a…

Commutative Algebra · Mathematics 2024-02-20 Hyun Seung Choi

We study the arithmetic of seminormal $v$-noetherian weakly Krull monoids with nontrivial conductor which have finite class group and prime divisors in all classes. These monoids include seminormal orders in holomorphy rings in global…

Commutative Algebra · Mathematics 2015-08-05 Alfred Geroldinger , Florian Kainrath , Andreas Reinhart

We extend to rings with zero-divisors the concept of perinormal domain introduced by N. Epstein and J. Shapiro. A ring $A$ is called perinormal if every overring of $A$ which satisfies going down over $A$ is $A$-flat. The Pr\"ufer rings and…

Commutative Algebra · Mathematics 2016-09-30 Tiberiu Dumitrescu , Anam Rani

We study the class of domains in which each w-ideal is divisorial, extending several properties of divisorial and totally divisorial domains to a much wider class of domains. In particular we consider PvMDs and Mori domains.

Commutative Algebra · Mathematics 2007-05-23 Said El Baghdadi , Stefania Gabelli

The t-class semigroup of an integral domain R, denoted S_t(R), is the semigroup of fractional t-ideals modulo its subsemigroup of nonzero principal ideals with the operation induced by ideal t-multiplication. We recently proved that if R is…

Commutative Algebra · Mathematics 2009-01-20 S. Kabbaj , A. Mimouni

Let $R$ be an integral domain with $qf(R)=K$ and let $F(R)$ be the set of nonzero fractional ideals of $R.$ Call $R$ a dually compact domain (DCD) if for each $I\in F(R)$ the ideal $I_{v}=(I^{-1})^{-1}$ is a finite intersection of principal…

Commutative Algebra · Mathematics 2021-07-13 Muhammad Zafrullah

Using the notion of cyclically pure injective modules, a characterization for rings which are locally valuation is established. As applications, new characterizations for Prufer domains and pure semi-simple rings are provided. Namely, we…

Commutative Algebra · Mathematics 2007-05-23 Kamran Divaani-Aazar , Mohammad Ali Esmkhani , Massoud Tousi

We explicitly describe the divisor class groups and semidualizing modules for ladder determinantal rings with coefficients in an arbitrary normal domain for arbitrary ladders, not necessarily connected, and all sizes of minors.

Commutative Algebra · Mathematics 2020-01-23 Sean K. Sather-Wagstaff , Tony Se , Sandra Spiroff

In this paper, we completely describe the family of integrally closed Noetherian domains between $\mathbb{Z}[X]$ and $\mathbb{Q}[X]$. We accomplish this result by classifying the Krull domains between these two polynomial rings. To this…

Commutative Algebra · Mathematics 2026-02-02 Gyu Whan Chang , Giulio Peruginelli

Let $R$ be a (possibly noncommutative) ring and let $\mathcal C$ be a class of finitely generated (right) $R$-modules which is closed under finite direct sums, direct summands, and isomorphisms. Then the set $\mathcal V (\mathcal C)$ of…

Commutative Algebra · Mathematics 2014-01-28 Nicholas R. Baeth , Alfred Geroldinger

The t-class semigroup of an integral domain is the semigroup of the isomorphy classes of the t-ideals with the operation induced by ideal t-multiplication. This paper investigates ring-theoretic properties of an integral domain that reflect…

Commutative Algebra · Mathematics 2007-09-16 S. Kabbaj , A. Mimouni

Factoring ideals in integral domains is a central topic in multiplicative ideal theory. In the present paper we study monoids of ideals and consider factorizations of ideals into multiplicatively irreducible ideals. The focus is on the…

Commutative Algebra · Mathematics 2017-10-02 Alfred Geroldinger , Andreas Reinhart

A commutative integral domain is primary if and only if it is one-dimensional and local. A domain is strongly primary if and only if it is local and each nonzero principal ideal contains a power of the maximal ideal. Hence one-dimensional…

Commutative Algebra · Mathematics 2020-04-13 Alfred Geroldinger , Moshe Roitman
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