Conjugation properties of tensor product multiplicities
Conjugation properties of tensor product multiplicities
复制标题
张量积重数的共轭性质
DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
J. Zuber
中科院分区:
文献类型:
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作者:
R. Coquereaux;J. Zuber
It was recently proven that the total multiplicity in the decomposition into irreducibles of the tensor product λ ⨂ &mgr; ?> of two irreducible representations of a simple Lie algebra is invariant under conjugation of one of them; at a given level, this also applies to the fusion multiplicities of affine algebras. Here, we show that, in the case of SU(3), the lists of multiplicities, in the tensor products λ ⨂ &mgr; ?> and λ ⨂ &mgr; ¯ ?> , are identical up to permutations. This latter property does not hold in general for other Lie algebras. We conjecture that the same property should hold for the fusion product of the affine algebra of SU(3) at finite levels, but this is not investigated in the present paper.