EPIMORPHISM

作品数：6被引量：6H指数：2
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相关期刊：《Science Bulletin》《Journal of Mathematical Research with Applications》《Acta Mathematica Scientia》《Chinese Annals of Mathematics,Series B》更多>>
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Notes on McCoy Modules被引量：3
《Journal of Mathematical Research with Applications》2018年第3期247-252,共6页Heqing ZHENG Zhi CHENG Xiaobin YIN 
Supported by the National Natural Science Foundation of China(Grant No.11471017);the Natural Science Foundation of Anhui Higher Education Institutions of China(Grant No.KJ2018A0304);the Doctoral Research Foundation and the Research Culture Foundation of Anhui Normal University(Grant No.2014xmpy11)
Let R be a ring with an identity and C（R） be the category of right R-modules. In this paper we introduce the notion of semi-McCoy module. With this notion we show that McCoy modules of C（R） are closed under kernel...
关键词：McCoy module extension cokernel of monomorphism kernel of epimorphism direct sum 
Homological Epimorphisms, Compactly Generated t-Structures and Gorenstein-Projective Modules被引量：3
《Chinese Annals of Mathematics,Series B》2018年第1期47-58,共12页Nan GAO Xiaojing XU 
The aim of this paper is two-fold.Given a recollement(T′,T,T′′,i*,i_*,i~!,j!,j*,j*),where T′,T,T′′are triangulated categories with small coproducts and T is compactly generated.First,the authors show that the BB...
关键词：Compactly generated t-structure RECOLLEMENT BBD-induction BPP-induction Homological ring epimorphism Gorensteinprojective module 
Lb-coequalizers and Lb-regular Epimorphisms in the Category of L-sets and Bi-induced Maps
《Chinese Quarterly Journal of Mathematics》2012年第2期169-176,共8页ZHANG Hong TANG Jian-gang LI Guo-hua 
Foundation item： Supported by the National Natural Science Foundation of China（10871137）
In this paper,it gives the definition of the category of ■-sets and bi-induced maps whose true value set is a Locale,a complete Heyting algebra.In this category it defines the L_b-monomorphisms and the L_b-epimorphis...
关键词：bi-induced map Lb-monomorphism Lb-epimorphism Lb-coequalizer Lbregular epimorphism 
S-SUPERFLUOUS AND S-ESSENTIAL HOMOMORPHISMS
《Acta Mathematica Scientia》2009年第2期391-401,共11页朱海燕 丁南庆 
Supported by Specialized Research Fund for the Doctoral Program of Higher Education (20050284015);National Natural Science Foundation of China (10771096)
Let R be a ring and S a class of R-modules. S-superfluous epimorphisms and S-essential monomorphisms are introduced and studied in this article. As applications, some new characterizations of von Neumann regular rings...
关键词：S-essential MONOMORPHISM S-superfluous EPIMORPHISM （pre）cover （pre）envelope 
Homotopy epimorphisms preserve nilpotency
《Chinese Science Bulletin》1996年第4期287-290,共4页林红 沈文淮 左再思 
National Natural Science Foundation of China.
Recall that f: X→Y is a homotopy epimorphism (monomorphism) if given u, v: Y→W(u, v:W→X), u(?)of(?)v(?)f implies u(?)v(f(?)u(?)f(?)v implies u(?)v). In ref. [1], Lin and Shen
关键词：homotopy-epimorphism homotopy-monomorphism nilpotent SPACE P-NILPOTENT space. 
Localization of homotopy epimorphisms and homotopy monomorphisms
《Chinese Science Bulletin》1995年第12期984-987,共4页沈文淮 左再思 
Project supported by the National Natural Science Foundation of China.
Recall that f: X→Y is a homotopy epimorphism (monomorphism), if given u, v: Y→W (u, v: W→X), uofvof implies uv (foufov implies uv). In this note, we shall consider the localization of homotopy epimorphisms andmonom...
关键词：LOCALIZATION HOMOTOPY EPIMORPHISM HOMOTOPY monomorphism. 
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