18.4 For further reading
Semi-direct products are not commonly covered in detail in either physics or mathematics textbooks, with the exception of the case of the Poincar´e group of special relativity, which will be discussed in chapter 42. Some textbooks that do cover the subject include section 3.8 of [85], chapter 6 of [39] and [9].
来源与版本
正文：英文 · OCR 机器稿 · 待校对
核对状态：OCR 机器稿 · 待校对
原书 PDF · 印刷页 204、205、206、207、208、209
来源版本：2025-10-20
来源 PDF SHA-256：5a1941b2443b54d5db3d055f1e5ba390429b7a728475258017aaac87ee85a837
OCR 来源 SHA-256：56b50a7927e16183e674d182a47fa8abf3c26f92b527480ec6a89fb14eeee0d6
OCR 产物 SHA-256：56b50a7927e16183e674d182a47fa8abf3c26f92b527480ec6a89fb14eeee0d6