Quasisymmetric and noncommutative skew Pieri rules

Published 15 Dec 2015 in math.CO | (1512.04614v2)

Abstract: In this note we derive skew Pieri rules in the spirit of Assaf-McNamara for skew quasisymmetric Schur functions using the Hopf algebraic techniques of Lam-Lauve-Sottile, and recover the original rules of Assaf-McNamara as a special case. We then apply these techniques a second time to obtain skew Pieri rules for skew noncommutative Schur functions.

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