Posted by haifeng on 2019-12-22 15:19:25 last update 2019-12-22 16:38:42 | Answers (1) | 收藏
(a) 特殊线性群
\[ SL(n,\mathbb{C})=\{A\in Mat(n\times n,\mathbb{C})\mid\det(A)=1\} \]
(b) 实正交群
\[ O(n,\mathbb{R})=\{A\in Mat(n\times n,\mathbb{R})\mid A^t\cdot A=I_n\} \]
References:
Klaus Hulek 著, 胥鸣伟 译 《初等代数几何》P. 16, 习题