Results 71 to 80 of about 32,058 (259)

On the locally functionally countable subalgebra of C(X) on locally functionally countable subalgebra of C(X)

Applied General Topology, 2015
Let $C_c(X)=\{f\in C(X) : |f(X)|\leq \aleph_0\}$, $C^F(X)=\{f\in C(X): |f(X)|
O. A. S. Karamzadeh, M. Namdari, S. Soltanpour   +2 more
doaj   +1 more source

Regularity and Products of Idemopotents in Endmorphism Monoids of Projective Acts [PDF]

, 1995
That the monoid of all transformations of any set and the monoid of all endomorphisms of any vector space over a division ring are regular (in the sense of von Neumann) has been known for many years (see [6] and [16], respectively).
Bulman-Fleming, Sydney
core   +1 more source

Lifting defects for nonstable K_0-theory of exchange rings and C*-algebras

, 2011
The assignment (nonstable K_0-theory), that to a ring R associates the monoid V(R) of Murray-von Neumann equivalence classes of idempotent infinite matrices with only finitely nonzero entries over R, extends naturally to a functor. We prove the following
B Blackadar, EG Effros, F Wehrung, F Wehrung, Friedrich Wehrung, GA Elliott, GJ Murphy, GM Bergman, GM Bergman, H Dobbertin, H Su, H-P Yu, I Kaplansky, J Tůma, KR Goodearl, KR Goodearl, KR Goodearl, KR Goodearl, LG Brown, M Rørdam, MA Rieffel, N Jacobson, P Ara, P Ara, P Gillibert, P Gillibert, PA Grillet, RB Warfield Jr, WK Nicholson   +28 more
core   +4 more sources

AutomataGPT: Transformer‐Based Forecasting and Ruleset Inference for Two‐Dimensional Cellular Automata

Advanced Science, EarlyView.
We introduce AutomataGPT, a generative pretrained transformer (GPT) trained on synthetic spatiotemporal data from 2D cellular automata to learn symbolic rules. Demonstrating strong performance on both forward and inverse tasks, AutomataGPT establishes a scalable, domain‐agnostic framework for interpretable modeling, paving the way for future ...
Jaime A. Berkovich, Noah S. David, Markus J. Buehler   +2 more
wiley   +1 more source

Some Properties of Von Neumann Regular Graphs of Rings

Journal of the Indonesian Mathematical Society, 2022
Let R be a ring with unity. Taloukolaei and Sahebi [2] introduced the Von Neumann regular graph GV nr+(R) of a ring, whose vertex set is R and two distinct vertices x and y are adjacent if and only if x + y is a Von Neumann regular element. In this article, we investigate some new properties of GV nr+(R) such as traversability, pancyclic, unicyclic ...
Diamond Kharkongor, Laithun Boro, Madan Mohan Singh, Sanghita Dutta   +3 more
openaire   +2 more sources

Synergistic Spin‐Polarization and Single‐Atom Engineering in Magnetic Heterojunctions for Efficient Solar Water Splitting

Advanced Science, EarlyView.
High‐throughput screening led to the identification of 67 Z‐scheme heterojunctions (comprising 2D magnetic transition metal halides and non‐magnetic transition metal chalcogenides). For CrI3/MoTe2 and CrI3/WTe2, electronic structure analysis demonstrated that synergistic crystallographic point group and built‐in electric field effects generate a ...
Hongyang Ren, Zhenzhou Guo, Huirong Wu, Peilin Huang, Jie Yang, Jie Zhang, Guangqian Ding, Hongkuan Yuan, Biao Wang   +8 more
wiley   +1 more source

Shorted Operators Relative to a Partial Order in a Regular Ring [PDF]

, 2010
In this paper, the explicit form of maximal elements, known as shorted operators, in a subring of a von Neumann regular ring has been obtained. As an application of the main theorem, the unique shorted operator (of electrical circuits) which was ...
Blackwood, Brian, Jain, S. K., Prasad, K. M., Srivastava, Ashish K.   +3 more
core  

Semilattices of finitely generated ideals of exchange rings with finite stable rank

, 2004
We find a distributive (v, 0, 1)-semilattice S of size $ aleph\_1$ that is not isomorphic to the maximal semilattice quotient of any Riesz monoid endowed with an order-unit of finite stable rank.
Wehrung, Friedrich
core   +5 more sources

Sustainable Synaptic Device with Two‐Dimensional Ferroelectric Materials for Neuromorphic Computing

Advanced Science, EarlyView.
α‐In2Se3 based FeSFETs can be utilized as sustainable devices through polarization switching governed by both out‐of‐plane and in‐plane polarizations. Upon reaching a fatigued state, current annealing enabled by conductance modulation can significantly enhance the endurance of FeSFETs.
Jaewook Yoo, Seokjin Oh, Minah Park, Jong Min Song, Hongseung Lee, Seohyeon Park, Sojin Jung, Seongbin Lim, Soohyun Lim, Dongsun Shin, Ji Won Heo, TaeWan Kim, Hagyoul Bae   +12 more
wiley   +1 more source

High‐Power Terahertz Emission from Picosecond Nano‐Plasma Switching Driven by Secondary Electron Emission Avalanche

Advanced Science, EarlyView.
A nano‐plasma device enables watt‐level on‐chip THz generation through picosecond switching triggered by secondary electron emission avalanche. An ultra‐dense electron sheet initiates nano‐plasma formation within a ∼100 nm gap, driving rapid energy release into an integrated resonator.
Guangyu Sun, Mohammad Rezaei, Yuheng Hu, Guan‐Jun Zhang, Elison Matioli   +4 more
wiley   +1 more source