{"width":"100%","description":"\u7fa4\u3068\u306f\u5927\u5b66\u3067\u5b66\u3076\u6700\u3082\u57fa\u672c\u7684\u3067\u91cd\u8981\u306a\u4ee3\u6570\u69cb\u9020\u3067\u3042\u308b\uff0e\u5927\u96d1\u628a\u306b\u8a00\u3048\u3070\u8db3\u3057\u7b97\u3068\u5f15\u304d\u7b97\u304c\u3067\u304d\u308b\u96c6\u5408\u3067\u3042\u308b\uff0e \u7fa4\u306e\u5b9a\u7fa9\uff1a \u3092\u96c6\u5408\u3068\u3057\u4e8c\u9805\u6f14\u7b97$$G \\times G \\to G\\ \\ \\ \\ \\ ((a,b) \\mapsto a \\cdot b)$$\u304c\u4ee5\u4e0b\u3092\u6e80\u305f\u3059\u3068\u304d\u3092\u7fa4\u3068\u3044\u3046\uff0e \u4efb\u610f\u306e\u306b\u5bfe\u3057$$(a \\cdot b) \\cdot c = a \\cdot (b \\cdot c)\uff0e$$ \u3042\u308b\u304c\u5b58\u5728\u3057\uff0c\u4efb\u610f\u306e\u306b\u5bfe\u3057$$1_G \\cdot g = g \\cdot 1_G = g.$$\u3053\u3053\u3067\u3092\u5358\u4f4d\u5143\u3068\u3044\u3046\uff0e \u4efb\u610f\u306e\u306b\u5bfe\u3057\uff0c\u3042\u308b\u304c\u5b58\u5728\u3057$$g \\cdot g' = g' \\cdot g = 1_G.$$\u3053\u3053\u3067\u3092\u306e\u2026","author_name":"kyastel","url":"https://kyastel.hatenablog.com/entry/2018/02/28/185536","provider_url":"https://hatena.blog","categories":["\u6570\u5b66","\u4ee3\u6570","\u7fa4\u8ad6","\u5bfe\u79f0\u7fa4"],"title":"\u7fa4\u8ad6\uff11\u3000\u7fa4\u306e\u5b9a\u7fa9\u304a\u3088\u3073\u4f8b","published":"2018-02-28 18:55:36","version":"1.0","image_url":"https://chart.apis.google.com/chart?cht=tx&chl=G","provider_name":"Hatena Blog","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkyastel.hatenablog.com%2Fentry%2F2018%2F02%2F28%2F185536\" title=\"\u7fa4\u8ad6\uff11\u3000\u7fa4\u306e\u5b9a\u7fa9\u304a\u3088\u3073\u4f8b - kyastel\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","author_url":"https://blog.hatena.ne.jp/kyastel/","blog_url":"https://kyastel.hatenablog.com/","blog_title":"kyastel\u306e\u65e5\u8a18"}