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检索条件"主题词=cotorsion dimension"
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cotorsion dimension of Weak Crossed Products
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Communications in Mathematical Research 2018年 第2期34卷 133-140页
作者: Chen Hua-xi Liang Jin-rong Department of Mathematics and Physics Bengbu College Department of Basic Courses Chuzhou Institute of Technology
Let H be a finite-dimensional weak Hopf algebra over a field κ and A an associative algebra, and A#;H a weak crossed product. In this paper, a spectral sequence for Ext is constructed which yields an estimate for cot... 详细信息
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Relative Singularity Categories with Respect to Gorenstein Flat Modules
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Acta Mathematica Sinica,English Series 2017年 第11期33卷 1463-1476页
作者: Zhen Xing DI Zhong Kui LIU Xiao Xiang ZHANG Department of Mathematics Northwest Normal University Department of Mathematics Southeast University
Let R be a right coherent ring and D^b(R-Mod) the bounded derived category of left R-modules. Denote by D^b(R-Mod)[GF,C] the subcategory of D^b(R-Mod) consisting of all complexes with both finite Gorenstein flat... 详细信息
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