Results 11 to 20 of about 99 (88)

On a recent generalization of semiperfect rings [PDF]

open access: yes, 2008
In a recent paper by Wang and Ding, it was stated that any ring which is generalized supplemented as a left module over itself is semiperfect. The purpose of this note is to show that Wang and Ding's claim is not true and that the class of generalized ...
Büyükaşık, Engin, Christian, Lomp
core   +1 more source

Macdonald dual in the semilocal case and applications to local homology and local cohomology [PDF]

open access: yes, 2021
In this work we study some topological aspects of commutative algebra. More precisely, we study characterizations and properties of linearly compact modules on semilocal rings and prove, for example, that these modules satisfy a topological duality.
Nascimento Filho, Antonival Lopes do
core  

Homomorphisms with Semilocal Endomorphism Rings Between Modules

open access: yes, 2020
We study the category Morph(Mod-R) whose objects are all morphisms between two right R-modules. The behavior of the objects of Mod-R whose endomorphism ring in Morph(Mod-R) is semilocal is very similar to the behavior of modules with a semilocal ...
Campanini F.   +2 more
core   +1 more source

Noetherian Rings between a Semilocal Domain and Its Completion

open access: yes, 1997
We consider a general technique for constructing local Noetherian integral domains. LetRbe a semilocal Noetherian domain with Jacobson radicalmand field of fractionsK. Letybe a nonzero element ofmand letR* be the (y)-adic completion ofR. For elements τ1,…
Rotthaus, Christel   +2 more
core   +1 more source

Rings for which every cosingular module is discrete

open access: yes, 2020
In this paper we introduce the concepts of CD-rings and CD-modules. Let R be a ring and M be an R-module. We call R a CD-ring in case every cosingular R-module is discrete, and M a CD-module if every M-cosingular R-module in sigma[M] is discrete. If R is
Ali Reza MONİRİ HAMZEKOLAEE   +7 more
core   +1 more source

On the Relative K(2) of Non Commutative Local Rings.

open access: yes, 1988
This dissertation examines topics in Algebraic K-Theory, concerning the computation of absolute and relative Milnor groups, K$\sb2$(R) and K$\sb2$(R,I), for both commutative and non-commutative classes of rings, including the relative K$\sb2$ of non ...
Russell, Robert B
core   +1 more source

Unit lifting morphisms

open access: yes, 2022
© 2022 Elsevier GmbHIn this paper, we introduce the concept of a unit lifting morphism, a natural generalization of the classical notion “local morphism”, by providing several examples and investigating all its properties and interrelations with local ...
Özarslan, MELTEM, ÖZCAN, AYŞEN
core   +1 more source

Analytically unramified one-dimensional semilocal rings and their value semigroups

open access: yes, 2000
In a one-dimensional local ring R with finite integral closure each nonzerodivisor has a value in N-d, where d is the number of maximal ideals in the integral closure. The set of values constitutes a semigroup, the value semigroup of R.
D'Anna, M.   +5 more
core   +1 more source

Analysis of the magnetically induced current density of molecules consisting of annelated aromatic and antiaromatic hydrocarbon rings [PDF]

open access: yes, 2016
Magnetically induced current susceptibilities and current pathways have been calculated for molecules consisting of two pentalene groups annelated with a benzene (1) or naphthalene (2) moiety.
Berger, Raphael J. F.   +2 more
core   +1 more source

A first course in noncommutative rings

open access: yes, 2001
A First Course in Noncommutative Rings, an outgrowth of the author's lectures at the University of California at Berkeley, is intended as a textbook for a one-semester course in basic ring theory. The material covered includes the Wedderburn-Artin theory
Lam, T Y, T. Y. Lam
core   +1 more source

Home - About - Disclaimer - Privacy