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，国家级人才。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。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：

One of the fundamental considerations on derived categories of algebras is to construct derived equivalences between two algebras. In this talk, we shall report methods for constructing derived equivalences by Milnor patching. As applications, we show how to get derived equivalences of algebras in terms operations of gluing vertices, unifying arrows and identifying socle elements. This talk presents parts of a joint work with W. Hu.