What is the decomposition of the 4-dimensional representation of $Spin(4)=SU(2)\times SU(2)$ under $SO(4)$? I need this to find $SO(4)$ singlets inside $Spin(4)$.
2026-05-06 11:09:22.1778065762
Decomposition of the fundamental representation of $SU(2)\times SU(2)$
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