{"id":9544,"date":"2024-11-11T17:49:17","date_gmt":"2024-11-11T08:49:17","guid":{"rendered":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/?page_id=9544"},"modified":"2024-11-12T21:31:49","modified_gmt":"2024-11-12T12:31:49","slug":"%e8%a3%9c%e8%b6%b3%ef%bc%9a%e6%b8%ac%e5%9c%b0%e7%b7%9a%e5%81%8f%e5%b7%ae%e6%96%b9%e7%a8%8b%e5%bc%8f%e3%81%ae%e5%b0%8e%e5%87%ba%ef%bc%88%e5%88%a5%e8%a7%a3%ef%bc%89","status":"publish","type":"page","link":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/%e4%b8%80%e8%88%ac%e7%9b%b8%e5%af%be%e8%ab%96%e7%9a%84%e6%99%82%e7%a9%ba%e3%81%ae%e8%a1%a8%e3%81%97%e6%96%b9\/%e5%b9%b3%e8%a1%8c%e7%b7%9a%e3%81%ae%e5%85%ac%e7%90%86%e3%81%ae%e7%a0%b4%e3%82%8c%e3%81%a8%e3%83%aa%e3%83%bc%e3%83%9e%e3%83%b3%e3%83%86%e3%83%b3%e3%82%bd%e3%83%ab\/%e8%a3%9c%e8%b6%b3%ef%bc%9a%e6%b8%ac%e5%9c%b0%e7%b7%9a%e5%81%8f%e5%b7%ae%e6%96%b9%e7%a8%8b%e5%bc%8f%e3%81%ae%e5%b0%8e%e5%87%ba%ef%bc%88%e5%88%a5%e8%a7%a3%ef%bc%89\/","title":{"rendered":"\u88dc\u8db3\uff1a\u6e2c\u5730\u7dda\u504f\u5dee\u65b9\u7a0b\u5f0f\u306e\u5c0e\u51fa\uff08\u5225\u89e3\uff09\u3068\u6ce8\u610f\u4e8b\u9805"},"content":{"rendered":"

2\u672c\u306e\u8fd1\u63a5\u6e2c\u5730\u7dda\u304b\u3089\uff0c\u76f4\u63a5\u6e2c\u5730\u7dda\u504f\u5dee\u65b9\u7a0b\u5f0f\u3092\u5c0e\u304f\u3002<\/p>\n

2\u672c\u306e\u8fd1\u63a5\u6e2c\u5730\u7dda<\/h3>\n

\u307e\u305a\uff0c\u300c\u307e\u3063\u3059\u3050\u306a\u7dda<\/strong><\/span>\u300d\u3067\u3042\u308b\u6e2c\u5730\u7dda<\/strong><\/span>\u30922\u672c\u7528\u610f\u3059\u308b\u3002<\/p>\n

\u305d\u308c\u305e\u308c\u306e\u4e16\u754c\u7dda<\/strong><\/span>\u3092 \\(x^{\\mu}(v)\\), \\(\\tilde{x}^{\\mu}(v) \\) \u3068\u8868\u3059\u3068\uff0c\u305d\u308c\u305e\u308c\u306e\u63a5\u30d9\u30af\u30c8\u30eb<\/strong><\/span>\u306f<\/p>\n

\\begin{eqnarray}
\n\\boldsymbol{u} (x)&=& u^{\\mu}(x) \\boldsymbol{e}_{\\mu}(x) = \\frac{dx^{\\mu}}{dv} \\boldsymbol{e}_{\\mu}(x)\\\\
\n\\tilde{\\boldsymbol{u}} (\\tilde{x}) &=& \\tilde{u}^{\\mu}(\\tilde{x}) \\boldsymbol{e}_{\\mu}(\\tilde{x}) = \\frac{d\\tilde{x}^{\\mu}}{dv} \\boldsymbol{e}_{\\mu}(\\tilde{x})
\n\\end{eqnarray}<\/p>\n

\u6e2c\u5730\u7dda\u65b9\u7a0b\u5f0f<\/strong><\/span>\u306f
\n\\begin{eqnarray}
\n\\frac{d\\boldsymbol{u}}{dv} &=&
\n\\frac{d^2 x^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}(x)
\n+ \\frac{d x^{\\mu}}{dv} \\boldsymbol{e}_{\\mu, \\nu}(x) \\frac{d x^{\\nu}}{dv}
\n= \\boldsymbol{0} \\\\
\n\\frac{d\\tilde{\\boldsymbol{u}}}{dv} &=&
\n\\frac{d^2 \\tilde{x}^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}(\\tilde{x})
\n+ \\frac{d \\tilde{x}^{\\mu}}{dv} \\boldsymbol{e}_{\\mu, \\nu}(\\tilde{x}) \\frac{d \\tilde{x}^{\\nu}}{dv}
\n=\\boldsymbol{0}
\n\\end{eqnarray}
\n\u3067\u3042\u308b\u3002<\/p>\n

\u7279\u306b\u3053\u308c\u30892\u672c\u306e\u6e2c\u5730\u7dda\u304c\u8fd1\u63a5\u3057\u3066\u3044\u308b\u3068\u3057\u3066\uff0c
\n$$\\tilde{x}^{\\mu}(v)=x^{\\mu}(v) + {\\color{red}{\\epsilon}}\\, \\xi^{\\mu}, \\quad |{\\color{red}{\\epsilon}}| \\ll 1$$
\n\u3068\u304a\u304d\uff0c\u5fae\u5c0f\u91cf \\( {\\color{red}{\\epsilon}}\\) \u306e1\u6b21\u307e\u3067\u3068\u308b\u3068\uff0c<\/p>\n

\\begin{eqnarray}
\n\\frac{d\\tilde{\\boldsymbol{u}}}{dv} &=&
\n\\frac{d^2 \\tilde{x}^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}(\\tilde{x})
\n+ \\frac{d\\tilde{x}^{\\mu}}{dv} \\boldsymbol{e}_{\\mu, \\nu}(\\tilde{x})\u00a0 \\frac{d\\tilde{x}^{\\nu}}{dv} \\\\
\n&=& \\left(\\frac{d^2 x^{\\mu}}{dv^2} + {\\color{red}{\\epsilon}}\\, \\frac{d^2 \\xi^{\\mu}}{dv^2} \\right)
\n\\biggl( \\boldsymbol{e}_{\\mu}(x) + {\\color{red}{\\epsilon}}\\, \\boldsymbol{e}_{\\mu, \\nu} \\xi^{\\nu}\\biggr) \\\\
\n&& + \\left(\\frac{d x^{\\mu}}{dv} + {\\color{red}{\\epsilon}}\\, \\frac{d \\xi^{\\mu}}{dv} \\right)\\biggl( \\boldsymbol{e}_{\\mu, \\nu}(x) + {\\color{red}{\\epsilon}}\\, \\boldsymbol{e}_{\\mu, \\nu\\rho } \\xi^{\\rho}\\biggr)
\n\\left(\\frac{d x^{\\nu}}{dv} + {\\color{red}{\\epsilon}}\\, \\frac{d \\xi^{\\nu}}{dv} \\right) \\\\
\n&\\simeq& \\frac{d\\boldsymbol{u}}{dv} + {\\color{red}{\\epsilon}} \\left\\{\\frac{d^2 \\xi^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}
\n+ 2 \\boldsymbol{e}_{\\mu, \\nu} \\frac{dx^{\\mu} }{dv} \\frac{d \\xi^{\\nu}}{dv}
\n+ \\frac{d^2 x^{\\mu}}{dv^2} \\boldsymbol{e}_{{\\mu, \\nu}} \\xi^{\\nu}
\n+ \\boldsymbol{e}_{{\\mu, \\nu\\rho}} \\frac{d x^{\\mu}}{dv} \\frac{d x^{\\nu}}{dv}\\xi^{\\rho} \\right\\}
\n\\end{eqnarray}<\/p>\n

$$\\therefore\\ \\ {\\color{blue}{\\frac{d^2 \\xi^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}
\n+ 2 \\boldsymbol{e}_{\\mu, \\nu} \\frac{dx^{\\mu} }{dv} \\frac{d \\xi^{\\nu}}{dv}
\n+ \\frac{d^2 x^{\\mu}}{dv^2} \\boldsymbol{e}_{{\\mu, \\nu}} \\xi^{\\nu}}}
\n+ \\boldsymbol{e}_{{\\mu, \\nu\\rho}} \\frac{d x^{\\mu}}{dv} \\frac{d x^{\\nu}}{dv}\\xi^{\\rho} =\\boldsymbol{0} \\tag{A}$$<\/p>\n

\u4e00\u65b9\uff0c<\/p>\n

\\begin{eqnarray}
\n\\frac{d^2 \\boldsymbol{\\xi}}{dv^2} &=& \\frac{d^2}{dv^2} \\left(\\xi^{\\mu} \\boldsymbol{e}_{\\mu} \\right) \\\\
\n&=& \\frac{d^2 \\xi^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}
\n+ 2 \\boldsymbol{e}_{\\mu, \\nu} \\frac{dx^{\\mu} }{dv} \\frac{d \\xi^{\\nu}}{dv}
\n+ \\xi^{\\rho} \\frac{d}{dv} \\left( \\boldsymbol{e}_{\\rho, \\mu} \\frac{dx^{\\mu}}{dv}\\right) \\\\
\n&=& \\frac{d^2 \\xi^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}
\n+ 2 \\boldsymbol{e}_{\\mu, \\nu} \\frac{dx^{\\mu} }{dv} \\frac{d \\xi^{\\nu}}{dv}
\n+ \\frac{d^2 x^{\\mu}}{dv^2} \\boldsymbol{e}_{{\\nu, \\mu}} \\xi^{\\nu}
\n+ \\boldsymbol{e}_{{\\rho, \\mu\\nu}} \\frac{d x^{\\mu}}{dv} \\frac{d x^{\\nu}}{dv}\\xi^{\\rho}\\\\
\n&=& {\\color{blue}{\\frac{d^2 \\xi^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}
\n+ 2 \\boldsymbol{e}_{\\mu, \\nu} \\frac{dx^{\\mu} }{dv} \\frac{d \\xi^{\\nu}}{dv}
\n+ \\frac{d^2 x^{\\mu}}{dv^2} \\boldsymbol{e}_{{\\mu, \\nu}} \\xi^{\\nu}}}
\n+ \\boldsymbol{e}_{{\\mu, \\rho\\nu}} \\frac{d x^{\\mu}}{dv} \\frac{d x^{\\nu}}{dv}\\xi^{\\rho}
\n\\end{eqnarray}<\/p>\n

$$\\therefore\\ \\ {\\color{blue}{\\frac{d^2 \\xi^{\\mu}}{dv^2} \\boldsymbol{e}_{\\mu}
\n+ 2 \\boldsymbol{e}_{\\mu, \\nu} \\frac{dx^{\\mu} }{dv} \\frac{d \\xi^{\\nu}}{dv}
\n+ \\frac{d^2 x^{\\mu}}{dv^2} \\boldsymbol{e}_{{\\mu, \\nu}} \\xi^{\\nu}}} = \\frac{d^2 \\boldsymbol{\\xi}}{dv^2}
\n-\\boldsymbol{e}_{{\\mu, \\rho\\nu}} \\frac{d x^{\\mu}}{dv} \\frac{d x^{\\nu}}{dv}\\xi^{\\rho} \\tag{B}$$<\/p>\n

(B) \u5f0f\u3092 (A) \u5f0f\u306b\u4ee3\u5165\u3057\u3066<\/p>\n

$$\\frac{d^2 \\boldsymbol{\\xi}}{dv^2} -\\boldsymbol{e}_{{\\mu, \\rho\\nu}} \\frac{d x^{\\mu}}{dv} \\frac{d x^{\\nu}}{dv}\\xi^{\\rho} + \\boldsymbol{e}_{{\\mu, \\nu\\rho}} \\frac{d x^{\\mu}}{dv} \\frac{d x^{\\nu}}{dv}\\xi^{\\rho} =\\boldsymbol{0} $$
\n$$\\therefore\\ \\ \\frac{d^2 \\boldsymbol{\\xi}}{dv^2} =
\n\\left( \\boldsymbol{e}_{{\\mu, \\rho\\nu}} -\\boldsymbol{e}_{{\\mu, \\nu\\rho}}\\right)\\frac{d x^{\\mu}}{dv} \\frac{d x^{\\nu}}{dv}\\xi^{\\rho}
\n$$<\/p>\n

\u3053\u306e\u3088\u3046\u306b\uff0c2\u672c\u306e\u8fd1\u63a5\u3057\u305f\u6e2c\u5730\u7dda\u65b9\u7a0b\u5f0f\u306e\u5f15\u304d\u7b97\u304b\u3089\uff0c\u76f4\u63a5\u6e2c\u5730\u7dda\u504f\u5dee\u65b9\u7a0b\u5f0f\u304c\u5f97\u3089\u308c\u308b\u308f\u3051\u3060\u304c\uff0c\u504f\u5dee\u30d9\u30af\u30c8\u30eb $\\boldsymbol{\\xi} = \\xi^{\\mu} \\boldsymbol{e}_{\\mu}$ \u306e2\u968e\u5fae\u5206\u306e\u5f62\u306b\u66f8\u304d\u63db\u3048\u308b\u306e\u306b\u624b\u9593\u304c\u304b\u304b\u308b\u3002<\/p>\n

\u6ce8\u610f\u4e8b\u9805<\/h3>\n

\u504f\u5dee\u30d9\u30af\u30c8\u30eb $\\boldsymbol{\\xi} = \\xi^{\\mu} \\boldsymbol{e}_{\\mu}$ \u306e2\u968e\u5fae\u5206\u306e\u5f62\u306b\u66f8\u304d\u63db\u3048\u308b\u306e\u306b\u624b\u9593\u304c\u304b\u304b\u308b\u306e\u3067\uff0c\u3042\u3089\u304b\u3058\u3081 $\\boldsymbol{\\xi}$ \u306e1\u968e\u5fae\u5206\u3067\u66f8\u304b\u308c\u3066\u3044\u308b\u4ee5\u4e0b\u306e\u5f0f\u3092\u4f7f\u304a\u3046\uff0c\u3068\u601d\u3046\u3068\u3061\u3087\u3063\u3068\u5931\u6557\u3059\u308b\u5834\u5408\u304c\u3042\u308b\u306e\u3067\u30e1\u30e2\u3002<\/p>\n

\u300c\u5e73\u884c\u7dda\u306e\u516c\u7406\u306e\u7834\u308c\u3068\u30ea\u30fc\u30de\u30f3\u30c6\u30f3\u30bd\u30eb<\/a>\u300d\u3067\u5c0e\u3044\u305f\u3088\u3046\u306b\uff0c\u8fd1\u63a5\u3057\u305f2\u672c\u306e\u6e2c\u5730\u7dda\u306e\u63a5\u30d9\u30af\u30c8\u30eb\u306f\uff0c\u504f\u5dee\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304b\u308c\u308b\u306e\u3067\u3042\u3063\u305f\u3002<\/p>\n

$$\\tilde{\\boldsymbol{u}}\\simeq \\boldsymbol{u} + \\epsilon \\frac{d \\boldsymbol{\\xi}}{dv}$$<\/p>\n

\u624b\u3063\u53d6\u308a\u65e9\u304f\uff0c\u3053\u306e\u4e21\u8fba\u3092\u30a2\u30d5\u30a3\u30f3\u30d1\u30e9\u30e1\u30fc\u30bf $v$ \u3067\u5fae\u5206\u3059\u308b\u3068\uff0c<\/p>\n

$$\\frac{d \\tilde{\\boldsymbol{u}}}{dv} \\simeq \\frac{d \\boldsymbol{u}}{dv} + \\epsilon \\frac{d^2 \\boldsymbol{\\xi}}{dv^2}$$<\/p>\n

\u3069\u3061\u3089\u3082\u6e2c\u5730\u7dda\u3060\u304b\u3089\uff0c<\/p>\n

\\begin{eqnarray}
\n\\frac{d \\tilde{\\boldsymbol{u}}}{dv} &=& \\boldsymbol{0}, \\\\
\n\\frac{d \\boldsymbol{u}}{dv} &=& \\boldsymbol{0}, \\\\
\n\\therefore\\ \\ \\frac{d^2 \\boldsymbol{\\xi}}{dv^2} &=& \\boldsymbol{0} \\ \\mbox{!?}
\n\\end{eqnarray}<\/p>\n

\u3068\u306a\u308a\uff0c\u6e2c\u5730\u7dda\u504f\u5dee\u5f0f\u304c\u51fa\u3066\u3053\u306a\u3044\uff01\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308b\u3002\u3053\u306e\u8ad6\u7406\u5c55\u958b\u306f\u3069\u3053\u304c\u60aa\u3044\u306e\u3067\u3042\u308d\u3046\u304b\uff1f<\/p>\n

\u3053\u3046\u3044\u3046\u843d\u3068\u3057\u7a74\u306b\u30cf\u30de\u3089\u306a\u3044\u305f\u3081\u306b\u306f\uff0c\u4e0a\u8a18\u306e\u3088\u3046\u306b2\u672c\u306e\u8fd1\u63a5\u3057\u305f\u6e2c\u5730\u7dda\u65b9\u7a0b\u5f0f\u306e\u5f15\u304d\u7b97\u304b\u3089\u76f4\u63a5\u6c42\u3081\u308c\u3070\u30e2\u30e4\u30e2\u30e4\u3057\u306a\u304f\u3066\u30b9\u30c3\u30ad\u30ea\u3068\u3057\u3066\u3088\u3044\u306e\u3067\u3042\u308b\u304c\uff0c\u4e00\u5fdc\u3053\u306e\u554f\u984c\u306b\u3082\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066\u81ea\u5206\u306b\u7d0d\u5f97\u3055\u305b\u3066\u304a\u3044\u3066\u3044\u308b\u3002<\/p>\n

\u307e\u305a\uff0c\u8fd1\u63a5\u3057\u305f2\u672c\u306e\u6e2c\u5730\u7dda\u306e\u63a5\u30d9\u30af\u30c8\u30eb\u3068\u504f\u5dee\u30d9\u30af\u30c8\u30eb\u3068\u306e\u95a2\u4fc2\uff08\u65e2\u51fa\uff09\u3092\uff0c\u3069\u3053\u306e\u5ea7\u6a19\u70b9\u306b\u304a\u3051\u308b\u30d9\u30af\u30c8\u30eb\u3067\u3042\u308b\u304b\u3092\u660e\u3089\u304b\u306b\u3057\u3066\u66f8\u304f\u3068\uff0c<\/p>\n

$$\\tilde{\\boldsymbol{u}}(\\tilde{x})\\simeq \\boldsymbol{u}(x) + \\epsilon \\frac{d \\boldsymbol{\\xi}}{dv}(x)$$<\/p>\n

\u3053\u306e\u307e\u307e\u3067\u306f\uff0c\u5de6\u8fba\u306f $\\tilde{x}^{\\mu}$ \u306b\u304a\u3051\u308b\u30d9\u30af\u30c8\u30eb\uff0c\u53f3\u8fba\u306f $x^{\\mu}$ \u306b\u304a\u3051\u308b\u30d9\u30af\u30c8\u30eb\u306e\u548c\uff0c\u7570\u306a\u308b\u5730\u70b9\u3067\u306e\u30d9\u30af\u30c8\u30eb\u3092\u7b49\u3057\u3044\u3068\u3057\u3066\u3044\u308b\u306e\u3067\u3042\u308b\u304b\u3089\uff0c\u3053\u306e\u5f62\u306e\u307e\u307e\u3067\u306f\uff0c\u3053\u306e\u7b49\u5f0f\u306b\u4e0d\u5909\u7684\u306a\u610f\u5473\u306f\u7121\u3044\u3057\uff0c\u3053\u306e\u307e\u307e\u4f7f\u3046\u306e\u306f\u5371\u967a\u3002<\/p>\n

\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066…<\/p>\n

\\begin{eqnarray}
\n\\epsilon \\frac{d \\boldsymbol{\\xi}}{dv} &\\simeq& \\tilde{\\boldsymbol{u}}(\\tilde{x}) -\\boldsymbol{u}(x) \\\\
\n&=& \\tilde{\\boldsymbol{u}}(x + \\epsilon \\,\\xi) -\\boldsymbol{u}(x) \\\\
\n&\\simeq& \\epsilon\\,\\boldsymbol{u}_{,\\mu} \\xi^{\\mu} \\\\
\n\\therefore\\ \\ \\frac{d \\boldsymbol{\\xi}}{dv} &=& \\boldsymbol{u}_{,\\mu} \\xi^{\\mu}
\n\\end{eqnarray}<\/p>\n

… \u3068\u3059\u308c\u3070\uff0c\u3053\u306e\u5f0f\u306f\u5de6\u8fba\u3082\u53f3\u8fba\u3082\u540c\u3058\u5730\u70b9 $x^{\\mu}$ \u3067\u306e\u30d9\u30af\u30c8\u30eb\u5f0f\u306a\u306e\u3067\uff0c\u3053\u308c\u306a\u3089\u5f15\u304d\u7d9a\u304d\u4e21\u8fba\u3092 $v$ \u3067\u3055\u3089\u306b\u5fae\u5206\u3057\u3066\u8a08\u7b97\u3092\u7d9a\u3051\u3089\u308c\u308b\u3002… \u3068\u3044\u3046\u308f\u3051\u3067\u300c\u88dc\u8db3\uff1a\u6e2c\u5730\u7dda\u504f\u5dee\u65b9\u7a0b\u5f0f\u306e\u5c0e\u51fa<\/a>\u300d\u3067\u3084\u3063\u3066\u307f\u305f\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

2\u672c\u306e\u8fd1\u63a5\u6e2c\u5730\u7dda\u304b\u3089\uff0c\u76f4\u63a5\u6e2c\u5730\u7dda\u504f\u5dee\u65b9\u7a0b\u5f0f\u3092\u5c0e\u304f\u3002<\/p>

\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":33,"featured_media":0,"parent":337,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-9544","page","type-page","status-publish","hentry","nodate","item-wrap"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages\/9544","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/users\/33"}],"replies":[{"embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/comments?post=9544"}],"version-history":[{"count":51,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages\/9544\/revisions"}],"predecessor-version":[{"id":9607,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages\/9544\/revisions\/9607"}],"up":[{"embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages\/337"}],"wp:attachment":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/media?parent=9544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}