Conjecture on admissible pictures and Littlewood–Richardson crystals

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Let λ\lambda, μ\mu, and ν\nu be Young diagrams with ∣λ∣+∣μ∣=∣ν∣|\lambda|+|\mu|=|\nu|. Let AA be an admissible order on the skew Young diagram ν∖λ\nu\setminus\lambda, and let A′A' be an admissible order on μ\mu. Write P(μ,ν∖λ;A,A′)\mathbf{P}(\mu,\nu\setminus\lambda;A,A') for the set of admissible pictures and B(μ)λν[A′]\mathbf{B}(\mu)^\nu_\lambda[A'] for the Littlewood–Richardson crystal associated with A′A'. Admissible-pictures conjecture. There exists a bijection

Ψ:B(μ)λν[A′]⟶P(μ,ν∖λ;A,A′).\Psi:\mathbf{B}(\mu)^\nu_\lambda[A']\longrightarrow \mathbf{P}(\mu,\nu\setminus\lambda;A,A').

This conjecture seeks to generalize the known correspondence between ordinary pictures and Littlewood–Richardson crystals to arbitrary admissible orders. Its status is not determined by the supplied source context.

References

Primary source

Toshiki Nakashima and Miki Shimojo, “Admissible Pictures and Littlewood-Richardson Crystals”, arXiv:0908.2366 (2009).

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