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math.CO2014
Littlewood-Richardson rules for symmetric skew quasisymmetric Schur functions
Christine Bessenrodt, Vasu V. Tewari, Stephanie J. van Willigenburg
The classical Littlewood-Richardson rule is a rule for computing coefficients in many areas, and comes in many guises. In this paper we prove two Littlewood-Richardson rules for sy…
math.RT2014
Modules of the 0-Hecke algebra and quasisymmetric Schur functions
Vasu V. Tewari, Stephanie J. van Willigenburg
We begin by deriving an action of the 0-Hecke algebra on standard reverse composition tableaux and use it to discover 0-Hecke modules whose quasisymmetric characteristics are the n…