{"blog_title":"\u3089\u3093\u3060\u3080\u306a\u8a18\u61b6","categories":["math-alg"],"author_name":"derwind","provider_url":"https://hatena.blog","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frandommemory.hatenablog.com%2Fentry%2F2016%2F10%2F11%2F010949\" title=\"Galois\u7406\u8ad6(62)\u2015\u5408\u6210\u62e1\u5927 - \u3089\u3093\u3060\u3080\u306a\u8a18\u61b6\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"Def (\u5408\u6210\u62e1\u5927) $K \\subset L_1,L_2 \\subset L$ \u3092\u4f53\u306e\u62e1\u5927\u3068\u3059\u308b\u3002(\u8d85\u5217\u7684\u306a\u4f8b\u3068\u3057\u3066\u306f\u4f8b\u3048\u3070\u3001 $L = \\bar{K}$)*1 \u3053\u306e\u6642\u3001\u5408\u6210\u62e1\u5927 $L_1 L_2$ \u3068\u306f $L_1$ \u3068 $L_2$ \u304c\u751f\u6210\u3059\u308b\u62e1\u5927\u4f53\u3001\u3064\u307e\u308a $L_1 L_2 = L_2 L_1 = K(L_1 \\cup L_2)$ \u306e\u3053\u3068\u3092\u8a00\u3046${}_\\square$\u5225\u306e\u89b3\u70b9\u3067\u306f\u3001 \\begin{array}{cccc} j: & L_1 \\otimes_K L_2 & \\to & L \\\\ & \\ell_1 \\otimes \\ell_2 & \\mapsto & \\ell_1 \\ell_2\u2026","title":"Galois\u7406\u8ad6(62)\u2015\u5408\u6210\u62e1\u5927","height":"190","width":"100%","author_url":"https://blog.hatena.ne.jp/derwind/","blog_url":"https://randommemory.hatenablog.com/","published":"2016-10-11 01:09:49","image_url":null,"version":"1.0","url":"https://randommemory.hatenablog.com/entry/2016/10/11/010949","provider_name":"Hatena Blog"}