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MONOMORPHISM: 作品数：15被引量：7H指数：2; 导出分析报告; 相关领域：理学更多>>; 相关期刊：《Science Bulletin》《Journal of Mathematical Research with Applications》《Science China Mathematics》《Algebra Colloquium》更多>>; 相关基金：国家自然科学基金上海市自然科学基金国家教育部博士点基金更多>>

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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