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

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.

arXiv comment19 pages

Cited by in corpus (1)

• Quasisymmetric Schur $Q$-functions and peak Young quasisymmetric Schur functions