Abstract:We reconsider the two related problems: distribution of the diagonal elements of a Hermitian n ˆn matrix of known eigenvalues (Schur) and determination of multiplicities of weights in a given irreducible representation of SUpnq (Kostka). It is well known that the former yields a semi-classical picture of the latter. We present explicit expressions for low values of n that complement those given in the literature [11,1], recall some exact (non asymptotic) relation between the two problems, comment on the limiti… Show more
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