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A family of quotients of the Rees Algebra

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TLDR
In this article, a family of quotient rings of the Rees algebra associated to a commutative ring is studied, which generalizes both the classical concept of idealization by Nagata and a more recent concept, the amalgamated duplication of a ring.
Abstract
A family of quotient rings of the Rees algebra associated to a commutative ring is studied. This family generalizes both the classical concept of idealization by Nagata and a more recent concept, the amalgamated duplication of a ring. It is shown that several properties of the rings of this family do not depend on the particular member.

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Book ChapterDOI

Betti numbers for numerical semigroup rings

TL;DR: In this article, the authors survey results related to the magnitude of Betti numbers of numerical semigroup rings and their tangent cones, and show that the Betti number of a semigroup ring can be expressed as
Journal ArticleDOI

On the type of an almost Gorenstein monomial curve

TL;DR: In this article, it was shown that the Cohen-Macaulay type of an almost Gorenstein monomial curve C ⊆ A 4 is at most 3, and made some considerations on the general case.
Journal ArticleDOI

One-dimensional Gorenstein local rings with decreasing Hilbert function

TL;DR: In this article, it was shown that for any integer h > 1, h ∈ { 14 + 22 k, 35 + 46 k | k ∈ N }, one can construct infinitely many one-dimensional Gorenstein local rings, including integral domains, reduced and non-reduced rings, whose Hilbert function decreases at level h; moreover, there are no bounds to the decrease of the Hilbert function.
Journal ArticleDOI

On n-Trivial Extensions of Rings

TL;DR: The notion of trivial extension of a ring by a module has been extensively studied and used in ring theory as well as in various other areas of research such as cohomology theory, representation theory, category theory and homological algebra.
Journal ArticleDOI

Families of Gorenstein and almost Gorenstein rings

TL;DR: In this article, it was shown that the Nagata idealization and amalgamated duplication properties depend only on a commutative ring and an ideal ring, and not on the whole Rees algebra.
References
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Book

Integral closure of ideals, rings, and modules

TL;DR: In this paper, the authors define the integral closure of rings and define a table of basic properties including separation, separationability, separation of rings, and normal homomorphisms, and the Briancon-Skoda theorem.
Journal ArticleDOI

An amalgamated duplication of a ring along an ideal: the basic properties

TL;DR: In this article, the authors introduce a general construction, denoted by R ⋈ E, called the amalgamated duplication of a ring R along an R-module E, that they assume to be an ideal in some overring of R.
Journal ArticleDOI

A construction of Gorenstein rings

TL;DR: In this article, a commutative ring R and a proper ideal I ⊂ R were constructed and a new ring denoted by R⋈I was studied.
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