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On some classes of modules
Czechoslovak Mathematical Journal, Tome 50 (2000) no. 4, pp. 839-846 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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The aim of this paper is to investigate quasi-corational, comonoform, copolyform and $\alpha $-(co)atomic modules. It is proved that for an ordinal $\alpha $ a right $R$-module $M$ is $\alpha $-atomic if and only if it is $\alpha $-coatomic. And it is also shown that an $\alpha $-atomic module $M$ is quasi-projective if and only if $M$ is quasi-corationally complete. Some other results are developed.
The aim of this paper is to investigate quasi-corational, comonoform, copolyform and $\alpha $-(co)atomic modules. It is proved that for an ordinal $\alpha $ a right $R$-module $M$ is $\alpha $-atomic if and only if it is $\alpha $-coatomic. And it is also shown that an $\alpha $-atomic module $M$ is quasi-projective if and only if $M$ is quasi-corationally complete. Some other results are developed.
Classification : 16D10, 16D80, 16D99
Keywords: quasi-corational module; copolyform module; $\alpha $-coatomic module 
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Güngöroglu, Gonca; Harmanci, Abdullah. On some classes of modules. Czechoslovak Mathematical Journal, Tome 50 (2000) no. 4, pp. 839-846. http://geodesic.mathdoc.fr/item/CMJ_2000_50_4_a10/

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