Results 101 to 110 of about 237,348 (199)

Powers of Monomial Ideals

open access: yes, 1999
We study monomial ideals in polynomial rings in two variables x, y over a field K. We determine various monomial ideals I such that Ik = (Mn)k where M is the maximal ideal generated by x, y and k is the least such integer.
Haynes, Rhonda S.
core  

WHEN ARE SYMMETRIC IDEALS MONOMIAL?

open access: yesJournal of Commutative Algebra, 2023
The notation has been updated and the main result extended; 9 ...
openaire   +2 more sources

Strong Persistence Index and Fluctuations in Colon Powers of Monomial Ideals

open access: yesMathematics
Let I be an ideal in a commutative Noetherian ring R. We say that a positive integer ℓ0 is the strong persistence index of I if ℓ0 is the smallest integer such that (Iℓ+1:RI)=Iℓ for all ℓ≥ℓ0.
Mehrdad Nasernejad, Jonathan T. Toledo
doaj   +1 more source

Monomial Ideals and Planar Graphs [PDF]

open access: yes, 1999
Grobner basis theory reduces questions about systems of polynomial equations to the combinatorial study of monomial ideals, or staircases. This article gives an elementary introduction to current research in this area. After reviewing the bivariate case, a new correspondence is established between planar graphs and minimal resolutions of monomial ...
Ezra Miller, Bernd Sturmfels
openaire   +1 more source

On Posets, Monomial Ideals, Gorenstein Ideals and their Combinatorics

open access: yesOrder
In this article we first compare the set of elements in the socle of an ideal of a polynomial algebra $K[x_1,\ldots,x_d]$ over a field $K$ that are not in the ideal itself and Macaulay's inverse systems of such polynomial algebras in a purely combinatorial way for monomial ideals, and then develop some closure operational properties for the related ...
Geir Agnarsson, Neil Epstein
openaire   +2 more sources

Monomial ideals with a prescribed Waldschmidt constant [PDF]

open access: yes
Let I be a monomial ideal in R=K[x_1,x_2,..,x_n], a polynomial ring over a field K. The Waldschmidt constant of I is an asymptotic invariant of I. The Waldschmidt constant manifests in many ways in commutative algebra and algebraic geometry, and is ...
Kohne, Craig
core   +1 more source

On the weak Lefschetz property of graded modules over K[x, y]

open access: yesLe Matematiche, 2012
It is known that graded cyclic modules over S = K[x, y] have the Weak Lefschetz Property (WLP). This is not true for non-cyclic modules over S. The purpose of this note is to study which conditions on S-modules ensure the WLP.
Giuseppe Favacchio, Phong Dinh Thieu
doaj  

Primary decomposition of monomial ideals

open access: yes, 2001
Let k be a field and R be a polynomial ring in n variables over k. Every ideal I of R=k[x₁, ... ,x_n]can be written as a finite intersection of primary ideals. A monomial ideal is an ideal of k[x₁, ...
장보금
core   +1 more source

Splittings of monomial ideals

open access: yes, 2008
We provide some new conditions under which the graded Betti numbers of a monomial ideal can be computed in terms of the graded Betti numbers of smaller ideals, thus comple-menting Eliahou and Kervaire’s splitting approach.
Adam Van Tuyl   +2 more
core  

The saturation number of monomial ideals [PDF]

open access: yes, 2023
Let $S=\mathbb{K}[x_1,\ldots, x_n]$ be the polynomial ring over a field $\mathbb{K}$ and $\mathfrak{m}= (x_1, \ldots, x_n)$ be the irredundant maximal ideal of $S$. For an ideal $I \subset S$, let $\mathrm{sat}(I)$ be the minimum number $k$ for which $I \
Pour, Ali Akbar Yazdan   +1 more
core  

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