Results 11 to 20 of about 618,863 (318)

Locally Compact Rings [PDF]

open access: yesProceedings of the National Academy of Sciences, 1935
As a generalization of theorems of L. Pontryagin, E. R. van Kampen and D. van Dantzig, the authors prove the following theorems: Theorem I: A locally compact and separable (not necessarily associative or commutative) field \(F\) is either a hypercomplex system over the real field or is totally disconnected. Theorem III: A locally compact, separable and
Jacobson, Nathan, Taussky, O.
openaire   +2 more sources

Rings of Fractions and Localization [PDF]

open access: yesFormalized Mathematics, 2020
Summary This article formalized rings of fractions in the Mizar system [3], [4]. A construction of the ring of fractions from an integral domain, namely a quotient field was formalized in [7]. This article generalizes a construction of fractions to a ring which is commutative and has zero divisor by means of a ...
openaire   +2 more sources

On GP- Ideals [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2009
In this work we give some new properties of GP- ideals as well as the relation between GP- ideals, - π regular and simple ring. Also we consider rings with every principal ideal are GP- ideals and establish relation between such rings with strongly ...
Raida Mahmood, Shahla Khalil
doaj   +1 more source

Some results on PIT and GPIT theorems [PDF]

open access: yesJournal of Hyperstructures, 2016
In this paper we generalize the P IT and the GP IT that can be used to study the heights of prime ideals in a general commutative Noetherian ring R and the dimension theory of such a ring and we use these generalizations to prove some useful results.
M. Ebrahimpour
doaj   +1 more source

On MLGP- Rings [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2019
An ideal K of a ring R is called right (left) generalized pure (GP -ideal) if for every a ∈ K, there exists m ∈ Z+, and b ∈ K such that  am = am b ( am = b am) . A ring R is called MLGP-ring if every right maximal ideal is left GP-ideal.
Raida mahmood, Ebtehal Mageed
doaj   +1 more source

TOP LOCAL COHOMOLOGY AND TOP FORMAL LOCAL COHOMOLOGY MODULES WITH SPECIFIED ATTACHED PRIMES [PDF]

open access: yesJournal of Algebraic Systems, 2021
Let (R,m) be a Noetherian local ring, M be a finitely generated R-module of dimension n and a be an ideal of R. In this paper, generalizing the main results of Dibaei and Jafari [3] and Rezaei [8], we will show that if T is a subset of AsshR M, then ...
A. R. Nazari, F. Rastgoo
doaj   +1 more source

Repeated-Root Constacyclic Codes Over the Chain Ring Fpm[u]/⟨u3

open access: yesIEEE Access, 2020
Let Z = Fpm[u]/(u3) be the finite commutative chain ring, where p is a prime, m is a positive integer and Fpm is the finite field with pm elements. In this paper, we determine all repeated-root constacyclic codes of arbitrary lengths over Z and their ...
Tania Sidana, Anuradha Sharma
doaj   +1 more source

Vanishing of cohomology over Cohen--Macaulay rings [PDF]

open access: yes, 2012
A 2003 counterexample to a conjecture of Auslander brought attention to a family of rings - colloquially called AC rings - that satisfy a natural condition on vanishing of cohomology.
Christensen, Lars Winther, Holm, Henrik
core   +1 more source

On the localization ring of a ring

open access: yesJournal of Algebra, 1970
Dans la première section on introduit des notions fondamentales: topologie additive, la localisation, etc. et on démontre des résultats généraux sur ces notions. Dans la deuxième section on obtient des résultats sur les topologies additives pour un anneau commutatif en utilisant les idéaux premiers.
Năstăsescu, C, Popescu, N
openaire   +1 more source

On the (non)rigidity of the Frobenius Endomorphism over Gorenstein Rings [PDF]

open access: yes, 2010
It is well-known that for a large class of local rings of positive characteristic, including complete intersection rings, the Frobenius endomorphism can be used as a test for finite projective dimension.
Dao, H., Li, J., Miller, C.
core   +2 more sources

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