Results 71 to 80 of about 6,227,953 (258)
A Minimal Regular Ring Extension of C(X) [PDF]
, 2002 Let G(X) denote the smallest (von Neumann) regular ring of real-valued functions with domain X that contains C(X), the ring of continuous real-valued functions on a Tikhonov topological space (X,Τ). We investigate when G(X) coincides with the ring C(X,Τδ)
Raphael, Robert M. +2 more
core +1 more source
Ext and von Neumann regular rings [PDF]
Czechoslovak Mathematical Journal, 1985 A ring R is called a left T-ring if \(Ext_ R(M,N)\neq 0\) for each non- projective module M and each non-injective module N. In the paper, the following results are proved: 1) Let R be a von Neumann regular ring. If R is a T-ring, then each left ideal of R is countably generated. 2) Let R be a simple countable regular ring.
openaire +2 more sources
Rosenbrock's theorem for systems over von Neumann regular rings [PDF]
, 2019 pp. 122-130If is a finite system over a commutative von Neumann regular ring R, the problem of searching for a matrix F such that the pencil has some prescribed Smith normal form is reduced to the case where R is a field, a problem which for ...
Hermida Alonso, José Ángel +3 more
core +1 more source
Anisotropic Memristive Switching in NbOCl2 Enabled by Directional Oxygen Ion Migration
Advanced Science, EarlyView.This study investigates strongly orientation‐dependent memristive switching in anisotropic NbOCl2, observed exclusively along the in‐plane c‐axis. The switching originates from direction‐selective oxygen‐ion migration and vacancy propagation that modulate the Pd/NbOCl2 Schottky barrier, enabling short‐term plasticity.
Caokun Wang +6 more
wiley +1 more source
A valuation ring analogue of von Neumann regularity
Annals of Pure and Applied Logic, 2007 The author unifies results on certain (Rumely) domains, arising from the work of \textit{A.~Macintyre} and \textit{L.~van den Dries} [``The logic of Rumely's local-global principle'', J.~Reine Angew.~Math. 407, 33--56 (1990; Zbl 0703.13021)], and \textit{A.~Prestel} and \textit{J.~Schmid} [``Existentially closed domains with radical relations'', J ...
openaire +2 more sources
Advanced Science, EarlyView.An antiferroelectric tunnel junction serves as a reservoir computing node, where field‐induced phase transitions and spontaneous ZrO2 relaxation deliver nonlinear fading memory. An In‐Ga‐Zn oxide interlayer enlarges the memory margin and multibit state richness.
Taegyu Kwon +13 more
wiley +1 more source
Leavitt path algebras are graded von Neumann regular rings
, 2014 In sharp contrast to the Abrams–Rangaswamy theorem that the only von Neumann regular Leavitt path algebras are exactly those associated to acyclic graphs, here we prove that the Leavitt path algebra of any arbitrary graph is a graded von Neumann regular ...
Hazrat, Roozbeh (R16959)
core +1 more source
Battery‐Inspired Electrochemical Synapses for Neuromorphic Applications
Advanced Science, EarlyView.Battery‐ion‐inspired synaptic devices integrate diverse electrolyte systems (solid, ion‐gel, liquid) with transition metal oxides, two‐dimensional materials, and organic channels to regulate ion‐electron coupling. By tailoring ion transport and host interactions, these platforms enable controllable plasticity and energy‐efficient implementations for ...
Won Woo Lee +6 more
wiley +1 more source
Gorenstein Von Neumann regular rings
, 2009 In this paper, we study the rings with zero Gorenstein weak dimensions, which we call them Gorenstein Von Neumann regular rings.
Mahdou, Najib +2 more
openaire +2 more sources
Classification of Boolean algebras through von Neumann regular C∞−rings
In this paper, we introduce the concept of a “von Neumann regular C∞-ring”, which is a model for a specific equational theory. We delve into the characteristics of these rings and demonstrate that each Boolean space can be effectively represented as the ...
Berni, Jean Cerqueira [UNESP] +1 more
core +1 more source