Structure of Hyperbolic Unitary Groups Ⅱ:Classification of E-Normal Subgroups

• 来源期刊: 代数集刊（英文版）
• 关键词: unitary groups E-normal subgroups sandwich classification
• 年，卷（期）: 2017,（2）
• 页码范围: 195-232
• 页数: 38页
• 语种: 英文
• DOI: 10.1142/S1005386717000128

摘要

This paper proves the sandwich classification conjecture for subgroups of an even dimensional hyperbolic unitary group U2n(R,A) which are normalized by the elementary subgroup EU2,n(R,A),under the condition that R is a quasi-finite ring with involution,i.e.,a direct limit of module finite rings with involution,and n ≥ 3.