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    <anon>物理学</anon>
    <anon>物理学-流体力学</anon>
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  <description>POINT 波動方程式の球面波解は，1次元波動方程式に帰着して求められる． 【関連記事】 ヘルムホルツ方程式 - Notes_JP e^{ikr}/rに関する計算 - Notes_JP 球面波 参考文献 球面波球面波3次元波動関数\begin{aligned} \biggl(\frac{1}{c^2}\frac{\partial^2}{\partial t^2}-\Delta\biggl) \phi(\boldsymbol{x},t)=0 \end{aligned}の解で，\begin{aligned} \phi(\boldsymbol{x},t)=u(r,t),\quad(r=|\bolds…</description>
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  <provider_name>Hatena Blog</provider_name>
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  <published>2020-05-26 21:15:59</published>
  <title>球面波</title>
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