Between two moments

Abstract

In this short note, we draw attention to a relation between two Horn polytopes which is proved in [Chenciner-Jiménez Pérez] as the result on the one side of a deep combinatorial result in [Fomin,Fulton, Li,Poon], on the other side of a simple computation involving complex structures. This suggested an inequality between Littlewood-Richardson coefficients which we prove using the symmetric characterization of these coefficients given in [Carré,Leclerc].

9 pages, 3 figures

Cited by in corpus (1)

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