Том 69
№ 9

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$I-n$-Coherent Rings, $I-n$-Semihereditary Rings, and $I$-Regular Rings

Zhanmin Zhu

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Let $R$ be a ring, let $I$ be an ideal of $R$, and let $n$ be a fixed positive integer. We define and study $I-n$-injective modules and $I-n$-flat modules. Moreover, we define and study left $I-n$-coherent rings, left $I-n$-semihereditary rings, and $I$-regular rings. By using the concepts of $I-n$-injectivity and $I-n$-flatness of modules, we also present some characterizations of the left $I-n$-coherent rings, left $I-n$-semihereditary rings, and $I$-regular rings.

English version (Springer): Ukrainian Mathematical Journal 66 (2014), no. 6, pp 857-883.

Citation Example: Zhanmin Zhu $I-n$-Coherent Rings, $I-n$-Semihereditary Rings, and $I$-Regular Rings // Ukr. Mat. Zh. - 2014. - 66, № 6. - pp. 767–786.

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