{"author_name":"fortran66","provider_url":"https://hatena.blog","blog_url":"https://fortran66.hatenablog.com/","image_url":null,"version":"1.0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ffortran66.hatenablog.com%2Fentry%2F2016%2F04%2F17%2F035329\" title=\"Ad \u3068 ad - fortran66\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://fortran66.hatenablog.com/entry/2016/04/17/035329","provider_name":"Hatena Blog","height":"190","width":"100%","blog_title":"fortran66\u306e\u30d6\u30ed\u30b0","title":"Ad \u3068 ad","published":"2016-04-17 03:53:29","categories":[],"type":"rich","author_url":"https://blog.hatena.ne.jp/fortran66/","description":"\u884c\u5217\u306e\u6307\u6570\u95a2\u6570\u306f\u3001\u3079\u304d\u5c55\u958b\u3057\u305f\u6307\u6570\u95a2\u6570\u3092\u5b9a\u7fa9\u3068\u3057\u3066\u884c\u5217\u7a4d\u3067\u3042\u3089\u308f\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3082\u53ce\u675f\u534a\u5f84\u306f\u221e\u306b\u306a\u308b\u306e\u3067\u3001\uff08\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u3057\u306a\u3051\u308c\u3070\uff09\u529b\u3065\u304f\u3067\u8a08\u7b97\u3059\u308c\u3070\u305d\u308c\u306a\u308a\u306b\u7d50\u679c\u304c\u51fa\u3066\u304d\u307e\u3059\u3002Ad \u306f\u3001\u6f14\u7b97\u5b50\u306e\u540c\u5024\u5909\u63db\u3092\u8868\u308f\u3057\u884c\u5217\u3067\u3042\u3089\u308f\u3057\u305f\u5834\u5408\u3001Ad(X)Y = XYX^-1 \u3067\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002 \u3053\u306e\u5909\u63db\u306e\u7121\u9650\u5c0f\u5909\u63db\u306f ad(x)Y = [x, Y] = xY - Yx \u3068\u4ea4\u63db\u5b50\u7a4d\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067x \u306f X \u306e\u7121\u9650\u5c0f\u5909\u63db\u3067\u3001X = exp(x) \u306e\u95a2\u4fc2\u304c\u3042\u308a\u307e\u3059\u3002ad(x) \u306f\u6f14\u7b97\u5b50\u3067\u3001ad(x)^2Y=ad(x)(ad(x)Y)=ad(x)[x, Y]=[x,[x, Y]] \u306e\u3088\u3046\u306b\u4f5c\u7528\u3057\u307e\u3059\u3002\u307e\u305f\u2026"}