Kronecker products, characters, partitions, and the tensor square conjecturesReportar como inadecuado



 Kronecker products, characters, partitions, and the tensor square conjectures


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We study the remarkable Saxl conjecture which states that tensor squares of certain irreducible representations of the symmetric groups S n contain all irreducibles as their constituents. Our main result is that they contain representations corresponding to hooks and two row Young diagrams. For that, we develop a new sufficient condition for the positivity of Kronecker coefficients in terms of characters, and use combinatorics of rim hook tableaux combined with known results on unimodality of certain partition functions. We also present connections and speculations on random characters of S n.



Autor: Igor Pak; Greta Panova; Ernesto Vallejo

Fuente: https://archive.org/







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