报告题目: Correspondence, Wells and Hochschild-Serre sequences for nonabelian extensions of multiplicative Lie algebras
报 告 人:Alexander Wires 教授(电子科技大学)
报告时间:2026年5月8日(星期五)下午16:00-17:00
报告地点:数学大楼912报告厅
参加人员:教师、研究生、本科生
报告摘要:For nonabelian 2-cohomology of multiplicative Lie algebras, we properly generalize from the group case three classic results. We prove a Correspondence theorem which compares 2-cohomology associated to a realized abstract kernel to the abelian 2-cohomology group over the algebraic center. For arbitrary extensions, we prove a Wells’s Theorem characterizing ideal-preserving au tomorphisms and establish the 1-dimensional Lyndon-Hochschild-Serre exact sequence. Several previously established results are recovered when restricted to extensions with group-abelian or Lie-trivial ideals.
报告人简介:Alexander Wires教授现为电子科技大学数学科学学院教授,曾任西南财经大学数学学院副教授。他主要从事泛代数研究工作,主要研究方向涵盖高维换位子理论、泛代数簇上同调理论、非交换代数扩张分类及代数结构与计算复杂性的交叉应用。他先后主持国家自然科学基金外国青年基金项目及面上项目等多项国家级课题。其研究成果发表于《Algebra Universalis》《Annals of Combinatorics》《Discrete Mathematics》及《Annals of Pure and Applied Logic》等国际期刊,获得同行广泛引用与高度认可。