Large-rank restriction conjecture for minimal affinizations

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Let ♢\diamondsuit be one of the four allowed diagram shapes and let {gn}\{\mathfrak{g}_n\} be a nonexceptional family of affine algebras associated with ♢\diamondsuit. Let P♢\mathcal{P}^{\diamondsuit} be the set of partitions whose Ferrers diagrams can be tiled by ♢\diamondsuit, let WλW^\lambda be the minimal affinization associated with a partition λ\lambda, and let cλμτc^\tau_{\lambda\mu} denote the Littlewood–Richardson coefficient, equivalently the stable type AA tensor multiplicity. Large-rank restriction conjecture. For nn sufficiently large and partitions representing dominant weights as above,

Wλ≅⨁τ(∑μ∈P♢cλμτ)VλW^\lambda\cong\bigoplus_\tau\left(\sum_{\mu\in\mathcal{P}^{\diamondsuit}}c^\tau_{\lambda\mu}\right)V^\lambda

as Uq(g‾)U_q(\overline{\mathfrak{g}})-modules. This conjecture describes the stable restriction from type AA through the partition shapes associated with the affine family; the source gives no resolution status.

References

Primary source

Mark Shimozono, “On the X=M=K Conjecture”, arXiv:math/0501353 (2005).

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