Schur Q-polynomials, multiple hypergeometric series and enumeration of marked shifted tableaux
Abstract
Description
We study Schur Q-polynomials evaluated on a geometric progression, or equivalently q-enumeration of marked shifted tableaux, seeking explicit formulas that remain regular at q=1. We obtain several such expressions as multiple basic hypergeometric series, and as determinants and pfaffians of continuous q-ultraspherical or continuous q-Jacobi polynomials. As special cases, we obtain simple closed formulas for staircase-type partitions.
34 pages; Appendix added, several minor improvements of previous version
34 pages; Appendix added, several minor improvements of previous version