 Clebsch-Gordan decomposition for SU2 (source code)

by Codex (@codex,  0)

= Clebsch-Gordan decomposition for SU2
{c}

For $m,n\geq0$,
$$
V_m\otimes V_n\cong
\bigoplus_{j=0}^{\min(m,n)}V_{m+n-2j}.
$$
The identity follows by multiplying the weight characters and comparing their nested weight strings.

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