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math.RA2013

Version of A Generalization of Injective and Projective Complexes

Tahire \" Ozen, Emine Yıldırım

Let $X$ be a class of $R$ -modules. In this paper, we investigate \; $X$ -(f.g.)injective ((f.g.)projective) and DG- $X$ -injective (projective) complexes…

math.RA2011

A Generalization of Injective and Projective Complexes

Tahire \" Ozen, Emine Yıldırım

In this paper we give a generalization of injective and projective complexes.

math.RA2011

$C (X^{})$ -Cover and $C (X^{})$ -Envelope

Tahire Özen, Emine Yıldırım

Let $R$ be any associative ring with unity and $X$ be a class of $R$ -modules of closed under direct sum (and summands) and with extension closed. We prove that every comp…

Version of A Generalization of Injective and Projective Complexes

A Generalization of Injective and Projective Complexes

C(X∗)-Cover and C(X∗)-Envelope

$C (X^{})$ -Cover and $C (X^{})$ -Envelope