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Recollements from exact contexts

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报告人: 惠昌常 教授

讲座日期:2020-11-13

讲座时间:9:00

报告地点:腾讯会议(742 781 811

主办单位:数学与信息科学学院

讲座人简介:

惠昌常,代数学专家,博士生导师,首都师范大学特聘教授,教育部长江学者特聘教授。在代数表示论及相关方面做出了重要贡献。1989年在联邦德国Bielefeld大学获博士学位,导师是国际著名代数表示论专家Claus Michael Ringel教授。曾在德国、英国、日本、美国、香港、等10多个国家和地区进行学术访问或合作科研。曾获教育部科技进步二等奖、德国年轻杰出学者洪堡奖。主持有国家自然科学基金重点项目等。目前正在担任《J. Algebra》、《Archiv der Math.》、《Asia-Euro. J. Math.》、《J. Math. Research Appl.》等国际期刊的编委。

讲座简介:

Recollements of triangulated categories were introduced by Beilinson, Bernstein and Deligne in 1982. Since then, this theory of recollements has become a very useful tool in algebraic geometry, topology and recently in the representation theory of algebras. There are many methods available to produce recollements of triangulated categories. However, to construct recollements of derived module categories of rings seems to be a difficult question, and little is known about it. In this talk, we present a method to construct recollements of derived module categories of algebras by homological exact contexts. The advantage of such a construction is that all rings involved can be described explicitly from the data of the given exact contexts.

 

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