Abstract
In this paper we show that two skew diagrams λ/μ and α/β can represent the same multiplicity free skew character [λ/μ]=[α/β] only in the the trivial cases when λ/μ and α/β are the same up to translation or rotation or if λ=α is a staircase partition λ=(l,l−1,…,2,1) and λ/μ and α/β are conjugate of each other.
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Gutschwager, C. Equality of multiplicity free skew characters. J Algebr Comb 30, 215–232 (2009). https://doi.org/10.1007/s10801-008-0158-8
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DOI: https://doi.org/10.1007/s10801-008-0158-8