学术报告
Cotorsion pairs and Gorenstein dimensions for complexes-Prof. Dr. Nanqing Ding (Nanjing University, China)
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时间： 2017-05-03
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题目：Cotorsion pairs and Gorenstein dimensions for complexes
报告人：Prof. Dr. Nanqing Ding (Nanjing University, China)
时间：2017年5月3日(周三)下午2:00—3:00
地点：首都师范大学本部教学2楼611教室
摘要：In this talk, we define the notion of Gorenstein ?-dimensions for complexes by applying the model structure induced by a complete hereditary cotorsion pair (A,?) in Mod-R. Characterizations of the finiteness of Gorenstein ?- dimensions for complexes are given. As an application, we get a new model structure in Mod-R. Moreover, we give some necessary and sufficient conditions for the validity of the Finitistic Dimension Conjecture. Finally, the relationships between Gorenstein ?-dimensions and ?-dimensions for complexes are studied.
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