June 18, 2024Open Access

Expanding quasisymmetric Schur Q-functions into peak Young quasisymmetric Schur functions

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Abstract

The dual immaculate and Young quasisymmetric Schur bases of quasisymmetric functions possess analogues in the peak algebra: respectively, the quasisymmetric Schur Q-functions and the peak Young quasisymmetric Schur functions. We show elements of the former basis expand into the latter basis with nonnegative coefficients.

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Searles et al. (Tue,) studied this question.

synapsesocial.com/papers/68e643efb6db6435875d5c23 https://doi.org/https://doi.org/10.48550/arxiv.2406.12751

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