Results 101 to 110 of about 6,227,953 (258)

Commutative group rings with von Neumann regular total rings of quotients

Journal of Algebra, 2013
Let \(RG\) be the group ring of an Abelian group \(G\) over a commutative ring \(R\) with identity and \(Q(R)\) be the total ring of quotients of \(R\). A ring \(R\) is said to be uniquely divisible by the order of every element of \(G\) if for every \(g\) in \(G\) of finite order \(n\), \(n\) divides every element \(r\in R\), and if \(r=ns=nt\) for ...
Schwarz, Ryan, Glaz, Sarah
openaire   +1 more source

Uniqueness in π-Regular Unital Rings [PDF]

, 2017
We establish that a ring is uniquely π-regular if, and only if, it is a division ring. This somewhat improves on our result proved for uniquely von Neumann regular rings in Palestine.departmental bulletin ...
Danchev, Peter V.
core  

Trap‐Programmable Ruddlesden–Popper Perovskite Nanocrystals for Persistent Optoelectronic Memory and Photonic Synapses

Advanced Science, EarlyView.
This work presents trap‐programmable Ruddlesden–Popper perovskite nanocrystals for ultralong‐lived optical memory and photonic synapses. Layer‐controlled octahedral distortion modulates trap depth and carrier‐storage kinetics, enabling persistent luminescence beyond 5000 s at room temperature.
Xuanyu Zhu, Qi Liu, Qi Wei, Hui Ren, Luwei Zhou, Jiangbo Peng, Yuxuan Chen, Jiatong Wang, Leyi Zhao, Pengzhi Wang, Xue Hao, Ting Wang, Mingjie Li   +12 more
wiley   +1 more source

Hardware Acceleration of Stochastic Neural Networks Enabled by Bit‐Cell Level Co‐Design of Magnetic Tunnel Junctions

Advanced Science, EarlyView.
An MTJ‐based probabilistic processing‐in‐memory architecture unites nonvolatile storage, local entropy generation, and stochastic computation within each memory cell. Stored multi‐bit weights are converted directly into programmable stochastic bitstreams, enabling neural‐network inference, adaptive Ising optimization, and uncertainty‐aware Bayesian ...
Qiuyuan Wang, Dooyong Koh, Brooke McGoldrick, Tudor Mocioi, Yabin Fan, Marc Baldo, Luqiao Liu   +6 more
wiley   +1 more source

On rational extensions of a ring [PDF]

, 1971
The purpose of this paper is to examine the rational extensions of a ring and to prove that under certain conditions the injective hull of a ring is a right self-injective, von Neumann ring.
Bowers, June Irene, NC DOCKS at The University of North Carolina at Greensboro   +1 more
core  

Central localizations of regular rings

, 1974
In this paper we show that a ring R R is von Neumann regular (or a V V -ring) if and only if every central localization of R R at a maximal ideal of its center is von Neumann regular (or a V
Joe W. Fisher, Stuart A. Steinberg, E. P. Armendariz   +2 more
core   +1 more source

Fully idempotent rings have regular centroids

, 1974
We prove that the centroid of a ring all of whose ideals are idempotent is commutative and regular in the sense of von Neumann. The center of a fully idempotent ring is regular. Evidently every regular ring is fully idempotent.
R. C. Courter
core   +1 more source

Interfacial Polarization Dynamics of Nitrile Dipoles in Organic Synaptic Transistors for Acoustic Reservoir Computing

Advanced Science, EarlyView.
Interfacial nitrile dipoles unlock tunable memory in organic synaptic transistors through competing polarization and relaxation. Their finite time dynamics are directly harnessed for acoustic reservoir computing, delivering 97.17% spoken digit recognition, reliable speech emotion and snoring recognition, and an ultralow event energy of only 50 aJ ...
Yutian Liu, Jiale Huang, Haoran Fang, Jichen Zhao, Fan Ye, Bo Huang, Ruibin Liang, Jintao Xu, Fanqi Wang, Mingjun Huang, Zhiming Lin, Shuguang Zhang, Linfeng Lan, Junbiao Peng   +13 more
wiley   +1 more source

Highly Linear Perovskite Synapses for Neuromorphic Computing

Advanced Science, EarlyView.
Voltage spikes applied to an Au/ACI‐phase perovskite/ITO memristor emulate the ionic signaling of a biological synapse, generating a tunable postsynaptic current. The vertically aligned perovskite film confines iodide‐vacancy migration, enabling highly linear, and symmetric conductance updates with 100 states and 5.5 aJ per event. Such synapses sustain
Zhongwen Sun, Boyu Wan, Zifan Zhang, Zhikai Wang, Xuan Zhao, Haonan Si, Qingliang Liao, Yue Zhang   +7 more
wiley   +1 more source

Semiartinian V-Rings and Semiartinian Von Neumann Regular Rings

Journal of Algebra, 1995
A ring \(R\) is called a right \(SV\)-ring if \(R\) is a right semiartinian ring (i.e. every nonzero right module has nonzero socle) and a right \(V\)- ring (i.e. every simple right module is injective). The paper under review presents an extensive investigation on the class of right \(SV\)- rings, which in fact form a special class of von Neumann ...
openaire   +1 more source