{"type":"rich","author_name":"derwind","image_url":null,"blog_url":"https://randommemory.hatenablog.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Frandommemory.hatenablog.com%2Fentry%2F2021%2F10%2F12%2F192919\" title=\"\u4e0d\u5909\u90e8\u5206\u7a7a\u9593 - \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>","provider_name":"Hatena Blog","published":"2021-10-12 19:29:19","version":"1.0","width":"100%","height":"190","description":"$V$ \u3092\u6709\u9650\u6b21\u5143\u30d9\u30af\u30c8\u30eb\u7a7a\u9593\u3068\u3059\u308b\u3002$A: V \\to V$ \u3092\u6b63\u5247\u884c\u5217\u3068\u3059\u308b\u3002$V^\\prime \\subsetneq V$ \u3092\u90e8\u5206\u7a7a\u9593\u3068\u3057\u3001$A$-\u4e0d\u5909\u3067\u3042\u308b\u3068\u3059\u308b\u3002$\\dim V^\\prime = k \\begin{align*} A (e_1, \\cdots, e_k, e_{k+1}, \\cdots, e_n) = (e_1, \\cdots, e_k, e_{k+1}, \\cdots, e_n) \\begin{pmatrix} A_1 & B \\\\ 0 & C \\end{pmatrix} \\tag{1} \\end{align*}\u3068\u306a\u308b\u3002\u3053\u3053\u3067 $A_1$ \u306f $k \\times k\u2026","author_url":"https://blog.hatena.ne.jp/derwind/","url":"https://randommemory.hatenablog.com/entry/2021/10/12/192919","provider_url":"https://hatena.blog","categories":["math-alg"],"blog_title":"\u3089\u3093\u3060\u3080\u306a\u8a18\u61b6","title":"\u4e0d\u5909\u90e8\u5206\u7a7a\u9593"}