发表机构
University of Georgia; Shandong University; Hunan University(佐治亚大学; 山东大学; 湖南大学)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本文研究算术格的非有限刚性,刻画了允许非同构实形式的高秩李群绝对Dynkin类型,并证明有限呈现剩余有限群的Kähler性质不由其有限完备化决定。
AI 中文摘要
我们研究算术格的非有限刚性及其对Kähler性质的影响。在第一部分中,我们刻画了允许包含具有同构有限完备化的无挠算术格的高秩李群的非同构实形式的绝对Dynkin类型。在第二部分中,作为一个几何应用,我们回答了Arapura和Libgober独立提出的一个问题,通过证明有限呈现的剩余有限群的Kähler性质不由其有限完备化决定。
英文摘要
We study the profinite non-rigidity of arithmetic lattices and its implications for the Kähler property. In the first part, we characterize the absolute Dynkin types that admit non-isomorphic real forms of higher-rank Lie groups containing torsion-free arithmetic lattices with isomorphic profinite completions. In the second part, as a geometric application, we answer a question asked independently by Arapura and Libgober, by showing that the Kählerness of finitely presented, residually finite groups is not determined by its profinite completion.
Comments22 pages, comments welcome