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INJECTIVE PRECOVERS AND MODULES OF GENERALIZED INVERSE POLYNOMIALS
作者姓名:LIU  Zhongkui
作者单位:LIU Zhongkui Department of Mathematics,Northwest Normal University,Lanzhou 730070,China.
基金项目:the National Natural Science Foundation of China (No.10171082),the Teaching and Research Award Program for Outstanding Young Teachers in Higher Education Institutions of the Ministry of Education of China and NWNU-KJCXGC212.
摘    要:Let (S,≤) be an ordered set. Recall that (S,≤) is artinian if every strictly decreasingsequence of elements of S is ?nite, and that (S,≤) is narrow if every subset of pairwiseorder-incomparable elements of S is ?nite. Let S be a commutative monoid. Unl…

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收稿时间:5/2/2016 12:00:00 AM

INJECTIVE PRECOVERS AND MODULES OF GENERALIZED INVERSE POLYNOMIALS
LIU Zhongkui.INJECTIVE PRECOVERS AND MODULES OF GENERALIZED INVERSE POLYNOMIALS[J].Chinese Annals of Mathematics,Series B,2004,25(1):129-138.
Authors:LIU Zhongkui
Institution:Department of Mathematics, Northwest Normal University, Lanzhou 730070, China
Abstract:This paper is motivated by S. Park 10] in which the injective cover of left Rx]module Mx-1] of inverse polynomials over a left R-module M was discussed. The author considers the Ω-covers of modules and shows that if η: P → M is an Ωcover of M, then ηs,≤]: pS,≤] → MS,≤] is an Ωs,≤]-cover of left Rs,≤]]-module MS,≤], where Ω is a class of left R-modules and Ms,≤] is the left Rs,≤]]-module of generalized inverse polynomials over a left R-module M. Also some properties of the injective cover of left RS,≤]]-module Ms,≤] are discussed.
Keywords:Injective precover  ?-cover  Module of generalized inverse polynomials  Ring of generalized power series
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