DLMF:34.3.E20 (Q9735)

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Language	Label	Description	Also known as
English	DLMF:34.3.E20	No description defined

Statements

{\displaystyle{\displaystyle Y_{{l_{1}},{m_{1}}}\left(\theta,\phi\right)Y_{{l_% {2}},{m_{2}}}\left(\theta,\phi\right)=\sum_{l,m}\left(\frac{(2l_{1}+1)(2l_{2}+% 1)(2l+1)}{4\pi}\right)^{\frac{1}{2}}\mathit{3j}{l_{1}}{l_{2}}{l}{m_{1}}{m_{2}}% {m}\overline{Y_{{l},{m}}\left(\theta,\phi\right)}\mathit{3j}{l_{1}}{l_{2}}{l}{% 0}{0}{0},}}

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DLMF:34.3.E20

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{\displaystyle{\displaystyle\pi}}

C3.S12.E1.m2adec

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