时间:2017年12月31日下午17:00-17:40
地点:11-302
主讲人:张东东,副教授,现为浙江师范大学数理信息与工程学院硕士生导师。长期从事环论与同调代数方面的研究,在《Communications in Algebra》、《Journal of Algebra and Its Applications》等SCI期刊发表学术论文10余篇。
报告内容:Let A be an abelian category and X a subcategory of A. Sather-Wagstaf, Sharifand White introduced the Gorenstein subcategory G(X). Denote by PP the classof pure-projective R-modules and by P the class of projective R-modules. We showthat there are some rings such that G(P) is not contained in G(PP), which gives a negative answerto the Question that whether G(W) is contained in G(X).
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科学技术处
2017年12月29日