Let R be a ring and n, k two non-negative integers. In this paper, we introduce the concepts
of n-weak injective and n-weak flat modules and via the notion of special super finitely …

In this paper, we introduce Gorenstein weak injective and weak flat modules in terms of,
respectively, weak injective and weak flat modules; the classes of Gorenstein weak injective …

Let $ R $ be a ring graded by a group $ G $ and $ n\geq1 $ an integer. We introduce the
notion of $ n $-FCP-gr-projective $ R $-modules and by using of special finitely copresented …

引入并研究了n-IFP-分次内射模和n-IFP-分次平坦模的定义ꎬ 这里n 是一个正整数ꎮ
证明了在任意分次环R 中ꎬ (gr-IFn ꎬ gr-IIn) 和(gr-IIn ꎬ gr-IFn) 构成两组对偶对ꎬ 其中gr-IFn …

模态代数的主同余 Page 1 山东大学学报(理学版)2020年2月第55卷第2期 E-mail:xblxb@sdu.edu.cn
Journal of Shandong University (Natural Science)ꎬ Vol.55ꎬ No.2ꎬ 2020 http:/ / lxbwk.njournal.sdu.edu.cn …

Let $ R $ be a ring and $ n $ a non-negative integer. In this paper, we first introduce the
concept of $ n $-super finitely copresented $ R $-modules and via these modules, we give a …

Let R be a graded ring and n⩾ 1 be an integer. We introduce and study the notions of
Gorenstein n-FP-gr-injective and Gorenstein n-gr-flat modules by using the notion of special …

Let R be a ring, X a class of R-modules and n≥ 1 an integer. We introduce the concepts of
Gorenstein nX-injective and nX-flat modules via special finitely presented modules. Besides …

Several authors have introduced various types of coherent-like rings and proved analogous
results on these rings. It appears that all these relative coherent rings and all the used …