Woit · §1.3 Unitary group representations
英文原文
GL(V) is identified as the group of invertible linear maps V to itself.
原文定义摘录
where is the group of invertible linear maps , with a vector space.
来源与版本
正文:英文原文
来源版本:2025-10-20
原文位置:§1.3;PDF 页 23、24、25、26、27;印刷页 6、7、8、9、10
处理记录:PDF 文字层提取;MinerU OCR;AI 辅助转录对照
核对状态:AI 辅助转录核对,未作人工审阅或数学审稿
来源 PDF SHA-256:5a1941b2443b54d5db3d055f1e5ba390429b7a728475258017aaac87ee85a837
中文译文
Woit · §4.1 Vector spaces and linear maps
英文原文
Invertible linear operators form the general linear group; a basis identifies it with the group of invertible matrices.
原文定义摘录
The reader should be warned that we will often not notationally distinguish between a linear operator and its matrix with matrix entries with respect to some unspecified basis, since we are often interested in properties of operators that, for the corresponding matrix, are basis-independent (e.g., is the operator or matrix invertible?). The invertible linear operators on form a group under composition, a group we will sometimes denote , with “GL” indicating “General Linear”. Choosing a basis identifies this group with the group of invertible matrices, with group law matrix multiplication. For dimensional, we will denote this group by in the real case, in the complex case.
来源与版本
正文:英文原文
来源版本:2025-10-20
原文位置:§4.1;PDF 页 52;印刷页 35
处理记录:PDF 文字层提取;MinerU OCR;AI 辅助转录对照
核对状态:AI 辅助转录核对,未作人工审阅或数学审稿
来源 PDF SHA-256:5a1941b2443b54d5db3d055f1e5ba390429b7a728475258017aaac87ee85a837
中文译文
Invertible linear operators form the general linear group; a basis identifies it with the group of invertible matrices.
译文摘录
读者应当注意,我们常常不会在记号上区分线性算符 与其在某个未指定基下的、矩阵元为 的矩阵,因为我们通常关心的是算符 的、对于相应矩阵而言与基无关的性质(例如,该算符或矩阵是否可逆?)。 上的可逆线性算符在复合下构成一个群,我们有时将这个群记作 ,其中“GL”表示“General Linear”。选取一组基将这个群与可逆矩阵群等同起来,其群法则为矩阵乘法。当 为 维时,在实情形下我们将这个群记作 ,在复情形下记作 。
来源与版本
正文:中文译文
来源版本:2025-10-20
原文位置:§4.1;PDF 页 52;印刷页 35
处理记录:machine-translation/deepseek-v4.1-flash
核对状态:译文尚未审核
Woit · §5.3 A summary
英文原文
Section 5.3 summarizes the groups already introduced in the book.
原文回顾摘录
- The general linear groups and are the groups of all invertible matrices, with real or complex entries respectively. Their Lie algebras are and . These are the vector spaces of all by matrices, with Lie bracket the matrix commutator. Other Lie groups will be subgroups of these, with Lie algebras sub-Lie algebras of these Lie algebras.
来源与版本
正文:英文原文
来源版本:2025-10-20
原文位置:§5.3;PDF 页 70、71;印刷页 53、54
处理记录:PDF 文字层提取;MinerU OCR;AI 辅助转录对照
核对状态:AI 辅助转录核对,未作人工审阅或数学审稿
来源 PDF SHA-256:5a1941b2443b54d5db3d055f1e5ba390429b7a728475258017aaac87ee85a837