Evènement pour le groupe Combinatoire Énumérative et Algébrique


Date 2009-10-16  09:30-10:30
TitreStabilité des coefficients de Kronecker 
RésuméIn the late 1930's Murnaghan discovered the existence of a stabilization phenomenon for the Kronecker product of Schur functions. For n sufficiently large, the values of the Kronecker coefficients appearing in the product of two Schur functions of degree n do not depend on the first part of the indexing partitions, but only on the values of their remaining parts. We compute the exact value of n for which all the coefficients of a Kronecker product of Schur functions stabilize. We also compute two new bounds for the stabilization of a sequence of coefficients and show that they improve existing bounds of M. Brion and E. Vallejo. 
Lieu076 
OrateurMercedes Rosas 
UrlUniversité de Séville (Espagne) 



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