Results 91 to 100 of about 2,654 (260)
On spectral compactness of von Neumann regular rings
, 2012 Summary: We characterize the spectral compactness of commutative von Neumann regular rings. We show that through a process of adjunction of identity, we can obtain the Alexandroff compactification or a star compactification of the prime spectrum of certain von Neumann regular rings.
RUBIO, IBETH MARCELA, ACOSTA, LORENZO
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On von Neumann regular rings with an automorphism
Journal of Algebra, 2007 Difference fields enjoy a nice model theory; for instance, their existentially closed models get an elegant axiomatization through ACFA and provide a typical example of structures with a simple theory. Furthermore every difference ring of sequences \(F^{\mathbb Z}\) for \(F\) a finite field, with the shift automorphism \(\sigma_t ((c_i)_{i \in {\mathbb
Hrushovski, Ehud, Point, Françoise
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A Dual‐Branch Flux‐Based Extended Memristor Model With Machine‐Learning‐Assisted Calibration
Advanced Electronic Materials, EarlyView.Multilayer oxide memristors integrated in crossbar arrays are described through a dual‐branch, flux‐controlled compact model. A three‐stage calibration workflow combining Latin hypercube sampling, Bayesian optimization, and gradient‐based refinement extracts device parameters from experimental data.
Davide Rossetti +6 more
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Linear and Programmable Long‐Term Plasticity in PECVD Amorphous SiC Memristors
Advanced Electronic Materials, EarlyView.Stoichiometry‐engineered PECVD amorphous SiC memristors exhibit highly linear and programmable long‐term synaptic plasticity with a nonlinearity as low as 0.08. By controlling the local bonding environment, stable multilevel conductance updates are achieved, enabling robust neural‐network classification on MNIST and CIFAR‐10 and highlighting amorphous ...
Qin Liu +6 more
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A Note on ϕ-Pseudo 2-Prime Ideals
Journal of MathematicsThis paper explores the concept of ϕ-pseudo 2-prime ideals within the framework of commutative rings. Let R be a commutative ring having a nonzero identity and ϕ:LR⟶LR∪∅ be a function, where LR is the lattice of all ideals of R.
Rabia Nagehan Üregen
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On von Neumann regular rings with weak comparability
Journal of Algebra, 2003 The author studies von Neumann regular rings with weak comparability, and obtains several interesting results. Among them he shows that the strict cancellation property and the strict unperforation property hold for the family of directly finite finitely generated projective modules over these rings.
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Applied Economic Perspectives and Policy, EarlyView.ABSTRACT Increased frequency of extreme weather events, particularly droughts, threatens grassland farming by destabilizing yields and farms' economic viability. We examine, theoretically and through numerical simulations, how sown plant diversity (natural insurance) influences the attractiveness of indemnity and drought index insurance (formal ...
Nicolas Alou +3 more
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Von Neumann regular semimodule
Annals of the Alexandru Ioan Cuza University - Mathematics, 2021 M. K. Sen, S. K. Maity, Sabnam Swomin
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K1 of noncommutative von Neumann regular rings
Journal of Pure and Applied Algebra, 1976 AbstractIf R is any (noncommutative, von Neumann) regular ring with 2 invertible, then K1 of the free (noncommuting) R-algebra on a set X is canonically isomorphic to K1(R). If R is unit-regular, then K1(R) is just the abelianization of the group of units of R. Some examples are computed.
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Who Are the Consumers of European Farmers' Markets? A Cross‐Country Analysis
Agribusiness, EarlyView.ABSTRACT With substantial growth in the number of farmers' markets (FMs) in developed countries, the number of consumers visiting FMs is also increasing. This study comparatively assesses the consumers of FMs in three European countries where FMs traditionally play a distinctive role in food supply chains.
Áron Török +6 more
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