I know that the irreps $\Pi$ of $SO(3)$ are self-dual, i.e., $(\Pi,V) \cong (\Pi^*,V^*)$. However, what exactly is the intertwining isomorphism $\phi: V\rightarrow V^*$?
2026-04-04 11:59:41.1775303981
Self-dual of irreps of $SO(3)$
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