Results 31 to 40 of about 1,293 (84)

$W_1$-ELEMENTS IN A COMMUTATIVE RING WITH UNITY

open access: yes, 2017
In this paper, we introduce and study w1-elements in a commutative ring with unity R. An element 0 6= x ∈ R is said to be a w1-element of R if whenever xd = x for 1 6= d ∈ R, then there exists 0 6= z ∈ R such that dz = 0. We show that if AnnR(x) = AnnR(y)
W. Nazeer, W. Khalid, S. Kang, W. Ahmad
semanticscholar   +1 more source

The containment problem and a rational simplicial arrangement

open access: yes, 2017
Since Dumnicki, Szemberg and Tutaj-Gasi\'nska gave in 2013 in [9] the first example of a set of points in the complex projective plane such that for its homogeneous ideal I the containment of the third symbolic power in the second ordinary power fails ...
Malara, G., Szpond, J.
core   +1 more source

A note on algebraic extensions modulo I

open access: yes, 2015
Let I be a nonzero ideal of a ring T , let ' W T ! E WD T=I denote the canonical projection, let D be a ring contained in E, and let RD ' 1.D/. The main purpose of this paper is to characterize when the ring extension R T is n(resp., universally ...
Basma Gasmi, N. Jarboui
semanticscholar   +1 more source

Points fattening on P^1 x P^1 and symbolic powers of bi-homogeneous ideals

open access: yes, 2013
We study symbolic powers of bi-homogeneous ideals of points in the Cartesian product of two projective lines and extend to this setting results on the effect of points fattening obtained by Bocci, Chiantini and Dumnicki, Szemberg, Tutaj-Gasi\'nska.
Baczyńska, Magdalena   +7 more
core   +1 more source

Fine‐scale reconstruction of pelagic fish migration by iso‐logging of eye lens

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 1, Page 77-84, January 2026.
Abstract Understanding lifetime space use by pelagic animals is pivotal for ecology and fisheries management, but electronic tags are costly, labour‐intensive and rarely able to capture juvenile movement. We implemented an iso‐logging workflow that converts stable isotope chronologies in eye lenses into continuous migration tracks, and demonstrate its ...
Jun Matsubayashi   +8 more
wiley   +1 more source

Noetherian rings of composite generalized power series

open access: yesOpen Mathematics
Let A⊆BA\subseteq B be an extension of commutative rings with identity, (S,≤)\left(S,\le ) a nonzero strictly ordered monoid, and S*=S\{0}{S}^{* }\left=S\backslash \left\{0\right\}.
Oh Dong Yeol
doaj   +1 more source

Zero-Dimensionality and Serre Rings [PDF]

open access: yes, 2004
2000 Mathematics Subject Classification: Primary 13A99; Secondary 13A15, 13B02, 13E05.This paper deals with zero-dimensionality. We investigate the problem of whether a Serre ring R is expressible as a directed union of Artinian ...
Karim, D.
core  

A Note on Formulas Transmuting Mixed Multiplicities

open access: yes, 2012
This paper establishes mixed multiplicity formulas concerning the relationship between mixed multiplicities of modules and mixed multiplicities of rings via rank of ...
Thanh, Truong Thi Hong, Viet, Duong Quoc
core   +1 more source

A note on *complete intersections generated by linear forms

open access: yes, 2014
Let R be a commutative noetherian graded ring. In RŒY1; : : : ;Ym we consider the linear forms ai D Pm jD1 aj iYj , 1 i n, with aj i homogeneous elements of R. We state a necessary and sufficient condition, in terms of grades of the determinantal ideals
M. Barbiera
semanticscholar   +1 more source

Efficacy of an oral chew containing fibre and Bacillus velezensis C‐3102 in the management of anal sac impaction in dogs

open access: yesVeterinary Dermatology, Volume 36, Issue 1, Page 74-82, February 2025.
Background — Anal sac impaction is common in dogs and manual expression may be effective, yet recurrence remains a problem. To facilitate physiological emptying of the sacs, it is important to maintain a bulky stool consistency. Objectives — The study evaluated if supplementation with ProGlan, a complementary feed containing Bacillus velezensis C‐3102 ...
Marta Salichs   +2 more
wiley   +1 more source

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