Results 31 to 40 of about 5,208,008 (157)
Epis and monos which must be isos
International Journal of Mathematics and Mathematical Sciences, 1984 Orzech [1] has shown that every surjective endomorphism of a noetherian module is an isomorphism. Here we prove analogous results for injective endomorphisms of noetherian injective modules, and the duals of these results.
David J. Fieldhouse
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Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013 Let M be a right R-module. We call M Rad-D12, if for every sub- module N of M, there exist a direct summand K of M and an epimor- phism α : K → M/N such that Kererα ⊆ Rad(K). We show that a direct summand of a Rad-D12 module need not be a Rad-D12 module.
Talebi Yahya +2 more
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Semiannihilator small submodules with respect to an arbitrary submodule
, 2022 In this paper R will denote a commutative ring with identity and M a nonzero unital R-module. We will generalize the concept of semiannihilator small submodules to the T-semiannihilator small submodules with respect to an arbitrary submodule T of ...
Poyan, M., Farzalipour, F., Rajaee, S.
core
Semi-perfect and F-semi-perfect modules
International Journal of Mathematics and Mathematical Sciences, 1985 A module is semi-perfect iff every factor module has a projective cover. A module M=A+B (for submodules A and B) is amply supplemented iff there exists a submodule A′ (called a supplement of A) of B such M=A+A′ and A′ is minimal with this property.
David J. Fieldhouse
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Modules in which every surjective endomorphism has an e-small kernel
Journal of Kufa for Mathematics and Computer, 2023 In this paper we introduce the notion of e-gH modules which is a proper generalization of Hopfian modules and defined as, a module is called e-gH if, any surjective -endomorphism of has an e-small kernel, a ring is called e-gH if, is e-gH. We
osama mohammed, Thaar Younis Ghawi
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Advanced Science, EarlyView.MolDBG is a site‐aware, sequence‐only framework that unifies drug‐target affinity prediction, binding‐site identification, and affinity‐conditioned molecular generation for structured proteins. Guided by multi‐task binding‐site supervision, it aligns interaction‐critical residues before learning drug‐target representations and simultaneously infers ...
Gang Luo +6 more
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Advanced Energy Materials, EarlyView.An alcohol‐adduct‐mediated strategy is employed to stabilize tin isopropoxide for the formation of a homogeneous double electron transport layer (ETL) incorporating SnO2 nanoparticles (NPs). This double‐ETL exhibits improved optical and charge‐transport properties due to reduced defect density and better energy level alignment, resulting in high ...
You‐Hyun Seo +10 more
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Small Farm Quarterly - Spring 2009
, 2009 Small Farm Quarterly is for farmers and farm families — including spouses and children - who value the quality of life that smaller farms provide.CONTENTS: SMALL FARM PROGRAM UPDATE: Cornell Small Farms Program Update, Page 3; BUSINESS MANAGEMENT ...
Cornell Small Farms Program
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Advanced Intelligent Discovery, EarlyView.This article outlines how artificial intelligence could reshape the design of next‐generation transistors as traditional scaling reaches its limits. It discusses emerging roles of machine learning across materials selection, device modeling, and fabrication processes, and highlights hierarchical reinforcement learning as a promising framework for ...
Shoubhanik Nath +4 more
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مجلة بغداد للعلوم, 2020 The main goal of this paper is to introduce and study a new concept named d*-supplemented which can be considered as a generalization of W- supplemented modules and d-hollow module. Also, we introduce a d*-supplement submodule.
Ibrahiem et al.
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