Results 1 to 10 of about 4,993 (263)

On the Gorenstein property of Rees and form rings of powers of ideals [PDF]

open access: yesTransactions of the American Mathematical Society, 1994
In this paper we determine the exponents n for which the Rees ring R (
Herrmann, Manfred, 1932-   +2 more
openaire   +4 more sources

Lanthanides Toxicity in Zebrafish Embryos Are Correlated to Their Atomic Number

open access: yesToxics, 2022
Rare earth elements (REEs) are critical metallic materials with a broad application in industry and biomedicine. The exponential increase in REEs utilization might elevate the toxicity to aquatic animals if they are released into the water due to ...
Ying-Ting Lin   +7 more
doaj   +1 more source

Rees Rings and Derivations

open access: yesRocky Mountain Journal of Mathematics, 1994
This paper deals with the question when the Rees ring associated with a filtration of ideals is invariant under a given derivation. Necessary and sufficient conditions are presented in the general case. The above question is also considered for several specific filtrations.
TAMONE, GRAZIA, MOLINELLI SILVIA
openaire   +4 more sources

F-rationality of determinantal rings and their Rees rings.

open access: yesMichigan Mathematical Journal, 1998
Let \(X\) be an \(m \times n\) matrix of indeterminates over a field \(K\), and let \(I_t(X)\) be the ideal in the polynomial ring in these indeterminates over \(K\) generated by the \(t \times t\) minors of \(X\). This is a determinantal ideal. Determinantal ideals arise naturally in many contexts, perhaps most notably they determine the fixed-size ...
Bruns, Winfried, Conca, Aldo
openaire   +3 more sources

PEMAKAIAN CHELATING MONOLITH SEBAGAI SOLID PHASE MICROEXTRACTION (SPME) TRACE ELEMEN DI DALAM AIR

open access: yesJurnal Riset Kimia, 2015
A syringe-based sample pretreatment tool, named herein “chelating monolith”, has been developed for simple and facile solid phase microextraction (SPME) of trace elements in natural waters.
Dwinna Rahmi
doaj   +1 more source

On completely 0-simple semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
Let S be a completely 0-simple semigroup and F be an algebraically closed field. Then for each 0-minimal right ideal M of S, M=B∪C∪{0}, where B is a right group and C is a zero semigroup.
Yue-Chan Phoebe Ho
doaj   +1 more source

Systems with the integer rounding property in normal monomial subrings

open access: yesAnais da Academia Brasileira de Ciências, 2010
Let C be a clutter and let A be its incidence matrix. If the linear system x > 0; x A < 1 has the integer rounding property, we give a description of the canonical module and the a-invariant of certain normal subrings associated to C. If the clutter is a
Luis A. Dupont   +2 more
doaj   +1 more source

FACTORIZATION AND DIVISIBILITY IN GENERALIZED REES RINGS

open access: yesBulletin of the Korean Mathematical Society, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kim, Hwankoo   +2 more
openaire   +3 more sources

The Aluffi Algebra and Linearity Condition

open access: yesپژوهش‌های ریاضی, 2022
The Aluffi algebra is an algebraic version of characteristic cycles in intersection theory which is an intermediate graded algebra between the symmetric algebra (naive blowup) and the Rees algebra (blowup).
Abbas Nasrollah Nejad, Parisa Solhi
doaj  

A Change of Rings Theorem and the Artin-Rees Property [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
A two-sided ideal A \mathfrak {A} of the ring
openaire   +2 more sources

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