Symmetric quasisymmetric Schur-like functions
arXiv:2507.08083
Abstract
In this paper we classify when (row-strict) dual immaculate functions and (row-strict) extended Schur functions, as well as their skew generalizations, are symmetric. We also classify when their natural variants, termed advanced functions, are symmetric. In every case our classification recovers classical skew Schur functions.
26 pages, final version to appear in European Journal of Combinatorics