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线上学术报告

Title: Extension dimensions: derived equivalences and stable equivalencs

Speaker: 张金币 博士（北京大学）

Abstract:The extension dimensions of Artin algebras give a reasonable way of measuring how far an algebra is from being representation-finite. In the talk, we discuss the behavior of the extension dimensions of algebras under different equivalences such as derived equivalences and stable equivalences. In particular, we show that the difference of the extension dimensions of two derived equivalent algebras is bounded above by the minimal length of the tilting complex associated with the given derived equivalence, and that extension dimension is invariant under stable equivalences. This reports a joint work with Junling Zheng from China Jiliang University.    

报告人简介：张金币，2021年博士毕业于首都师范大学，目前在北京大学从事博士后科研工作。主要研究矩阵代数的不变量理论和代数的扩张维数、导出等价及其稳定等价等，成果发表在国际数学杂志J. Algebra和Linear Algebra Appl.上。

北京时间：2022年11月11日（周五）上午9:00-10:00

腾讯会议：605-507-865   会议密码:  202211

联系人:    惠昌常 陈红星