{"url":"https://m-hiyama.hatenablog.com/entry/2025/09/09/145007","author_name":"m-hiyama","provider_name":"Hatena Blog","description":"\u76f8\u5bfe\u30e2\u30ca\u30c9 $`T`$ \u3092\u3001\u8a18\u53f7\u306e\u4e71\u7528\u3092\u3057\u306a\u3044\u3067\u66f8\u304f\u3068\uff1a$`\\newcommand{\\mrm}[1]{\\mathrm{#1}} \\newcommand{\\cat}[1]{\\mathcal{#1}} % \\quad T = (C^T, \\eta^T, \\mrm{Ext}^T)/J `$ \u3053\u3053\u3067\u3001$`J:\\cat{C}\\to \\cat{D}`$ \u306f\u30eb\u30fc\u30c8\u95a2\u624b\u3008root functor\u3009\u3068\u3057\u307e\u3059\u3002\u5404\u69cb\u6210\u7d20\u3092\u6b21\u306e\u3088\u3046\u306b\u547c\u3076\u3053\u3068\u306b\u3057\u307e\u3059\u3002 $`C^T`$ \u306f\u3001\u76f8\u5bfe\u30e2\u30ca\u30c9 $`T`$ \u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3008constructor\u3009 $`\\eta^T`$ \u306f\u3001\u76f8\u5bfe\u30e2\u30ca\u30c9 $`T`$ \u306e\u5358\u4f4d\u3008unit\u3009 $`\\m\u2026","version":"1.0","author_url":"https://blog.hatena.ne.jp/m-hiyama/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fm-hiyama.hatenablog.com%2Fentry%2F2025%2F09%2F09%2F145007\" title=\"\u76f8\u5bfe\u30e2\u30ca\u30c9\u306e\u30a2\u30a4\u30ec\u30f3\u30d9\u30eb\u30af\uff0f\u30e0\u30fc\u30a2\u570f \u88dc\u907a - \u6a9c\u5c71\u6b63\u5e78\u306e\u30ad\u30de\u30a4\u30e9\u98fc\u80b2\u8a18 (\u306f\u3066\u306aBlog)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"blog_url":"https://m-hiyama.hatenablog.com/","height":"190","title":"\u76f8\u5bfe\u30e2\u30ca\u30c9\u306e\u30a2\u30a4\u30ec\u30f3\u30d9\u30eb\u30af\uff0f\u30e0\u30fc\u30a2\u570f \u88dc\u907a","categories":["\u96d1\u8a18\uff0f\u5099\u5fd8"],"published":"2025-09-09 14:50:07","type":"rich","provider_url":"https://hatena.blog","width":"100%","blog_title":"\u6a9c\u5c71\u6b63\u5e78\u306e\u30ad\u30de\u30a4\u30e9\u98fc\u80b2\u8a18 (\u306f\u3066\u306aBlog)"}