
arXiv: 1207.1959
We study the class of ADS rings and modules introduced by Fuchs. We give some connections between this notion and classical notions such as injectivity and quasi-continuity. A simple ring R such that R is ADS as a right R-module must be either right self-injective or indecomposable as a right R-module. Under certain conditions we can construct a unique ADS hull up to isomorphism. We introduce the concept of completely ADS modules and characterize completely ADS semiperfect right modules as direct sum of semisimple and local modules.
7 pages
Injective modules, Algebra and Number Theory, quasi-continuous modules, [MATH.MATH-RA]Mathematics [math]/Rings and Algebras [math.RA], ADS modules, injective modules, relative injective, Structure and classification for modules, bimodules and ideals (except as in 16Gxx), direct sum decomposition and cancellation in associative algebras), Mathematics - Rings and Algebras, absolute direct summand property, Other classes of modules and ideals in associative algebras, Modules, 510, Direct sums, Injective, CS modules, Quasi-continuous modules, Rings and Algebras (math.RA), Injective modules, self-injective associative rings, [MATH.MATH-RA] Mathematics [math]/Rings and Algebras [math.RA], FOS: Mathematics, direct sums, ADS hulls
Injective modules, Algebra and Number Theory, quasi-continuous modules, [MATH.MATH-RA]Mathematics [math]/Rings and Algebras [math.RA], ADS modules, injective modules, relative injective, Structure and classification for modules, bimodules and ideals (except as in 16Gxx), direct sum decomposition and cancellation in associative algebras), Mathematics - Rings and Algebras, absolute direct summand property, Other classes of modules and ideals in associative algebras, Modules, 510, Direct sums, Injective, CS modules, Quasi-continuous modules, Rings and Algebras (math.RA), Injective modules, self-injective associative rings, [MATH.MATH-RA] Mathematics [math]/Rings and Algebras [math.RA], FOS: Mathematics, direct sums, ADS hulls
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