题目:On Pure Acyclic Complexes
报告人:丁南庆 教授, 南京大学
时间:2022年5月27日(星期五)下午14:30-15:30
地点:线下教室:东区第五教学楼5205 腾讯会议:518-5448-0979
摘要:In this talk, we review some results on pure acyclic complexes and give an affirmative answer to the conjecture that a complex $E$ in a locally $\lambda$-presentable Grothendieck category $\mathcal{A}$ is $\lambda$-pure acyclic if and only if any chain map $ f : X\rightarrow E$ from a complex $X$ of $\lambda$-pure projective objects in $\mathcal{A}$ to $E$ is null-homotopic, where $\lambda$ is an infinite regular cardinal. This talk is a report on joint work with Lei Shen and Meiqi Wang.
报告人简介:丁南庆,南京大学教授、博士生导师,享受国务院政府特殊津贴,曾获首届宝钢教育基金优秀教师奖、教育部自然科学二等奖等。主要从事同调代数等领域研究工作,在Adv. Math., Forum Math., J. Algebra以及 JPAA 等国际著名数学期刊发表论文100余篇,现任《Algebra Colloquium》编委。