{"author_url":"https://blog.hatena.ne.jp/ita/","author_name":"ita","height":"190","description":"[\u76ee\u6b21\u306b\u623b\u308b] \u30c8\u30fc\u30e9\u30b9\u3092\u5e73\u3089\u306b \u30c8\u30fc\u30e9\u30b9\u4e0a\u306e\u6e2c\u5730\u7dda Gauss-Bonnet \u306e\u5b9a\u7406:\u9023\u7d9a\u7248 \u30e6\u30fc\u30af\u30ea\u30c3\u30c9\u7a7a\u9593 \u30c8\u30fc\u30e9\u30b9\u3092\u5e73\u3089\u306b \u56db\u6b21\u5143\u3067\u30b7\u30ef\u3092\u4f5c\u3089\u305a\u306b\u30c8\u30fc\u30e9\u30b9\u3092\u4f5c\u308b\u65b9\u6cd5\uff1a \u3067, \u3002\u3068\u8868\u3055\u308c\u308b\u9762\u3092\u4f5c\u308c\u3070\u3044\u3044\u3002\u4e09\u6b21\u5143\u3067\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u3001\uff14\u6b21\u5143\u76ee\u306e\u6210\u5206\u3092\u8272\u3067\u8868\u793a\u3059\u308b\u3063\u3066\u3053\u3068\u3092\u3059\u308b\u3068 http://gregegan.customer.netspace.net.au/DIASPORA/02/02det.html \u306b\u3042\u308b\u56f3\u306b\u306a\u308b\u3002 \u30c8\u30fc\u30e9\u30b9\u4e0a\u306e\u6e2c\u5730\u7dda \u30c8\u30fc\u30e9\u30b9\u3092 \u3067\u8868\u3059\u30020\uff1cr\uff1c\uff11\u306f\u5b9a\u6570\u3002\u8868\u9762\u4e0a\u306e\u66f2\u7dda\u3092 \u03c6=\u03c6(\u03b8)\u3068\u30d1\u30e9\u30e1\u30c8\u30e9\u30a4\u30ba\u3057\u3066\u03c6\u3092\u03b8\u306e\u95a2\u6570\u306b\u3057\u3066\u8868\u3059\u3002\u66f2\u7dda\u306e\u66f2\u304c\u308b\u65b9\u5411\u306f \u3002\u3053\u308c\u304c\u6cd5\u7dda\u65b9\u5411 \u3068\u63a5\u7dda\u65b9\u2026","version":"1.0","blog_title":"ita\u2019s diary","provider_name":"Hatena Blog","url":"https://ita.hatenadiary.jp/entry/00020102/p2","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fita.hatenadiary.jp%2Fentry%2F00020102%2Fp2\" title=\"\u7406\u7cfb\u30de\u30cb\u30a2\u5411\u3051 - ita\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"\u7406\u7cfb\u30de\u30cb\u30a2\u5411\u3051","categories":[],"image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/i/ita/20050804/20050804105851.png","provider_url":"https://hatena.blog","blog_url":"https://ita.hatenadiary.jp/","published":"0002-01-02 00:00:01","type":"rich"}