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Nov 11, 2020 at 7:25 vote accept Peter Wildemann
Nov 9, 2020 at 20:12 comment added Abdelmalek Abdesselam You might want to clarify what you mean by Clebsch-Gordan coefficients. In math, this usually refers to the multiplicity of an irrep $V_{\rho}$ inside a tensor product of irreps $V_{\mu}\otimes V_{\nu}$. In physics this would refer the explicit matrix elements, in some basis, of an intertwiner in ${\rm Hom}(V_{\rho},V_{\mu}\otimes V_{\nu})$. And you also have Wigner symbols which are basis independent.
Nov 9, 2020 at 19:41 comment added Yemon Choi There was some work by Collins and coauthors about 10 years ago that sought to say things about large $n$ asymptotics for representations of classical matrix groups, from the point of view of free probability techniques. The paper arxiv.org/abs/0911.5546 is looking at U(n) rather than SO(n) and it might be somewhat tangential to the questions you have in mind, but perhaps it might offer a route into related literature that would be helpful?
Nov 9, 2020 at 5:18 answer added Christopher Ryba timeline score: 18
Nov 8, 2020 at 12:57 history edited Peter Wildemann CC BY-SA 4.0
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Nov 8, 2020 at 12:47 history edited YCor CC BY-SA 4.0
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Nov 8, 2020 at 12:19 history asked Peter Wildemann CC BY-SA 4.0