Giambelli, Pieri, and tableau formulas via raising operators

Details Giambelli, Pieri, and tableau formulas via raising operators Giambelli, Pieri, and tableau formulas via raising operators

2008-12-03

arxiv.org/abs/0812.0639v2

Mathematics

Combinatorics

33 pages

Scientific paper

We give a direct proof of the equivalence between the Giambelli and Pieri type formulas for Hall-Littlewood functions using Young's raising operators, parallel to joint work with Buch and Kresch for the Schubert classes on isotropic Grassmannians. We prove several closely related mirror identities enjoyed by the Giambelli polynomials, which lead to new recursions for Schubert classes. The raising operator approach is applied to obtain tableau formulas for Hall-Littlewood functions, theta polynomials, and related Stanley symmetric functions. Finally, we introduce the notion of a skew element w of the hyperoctahedral group and identify the set of reduced words for w with the set of standard k-tableaux on a skew Young diagram.

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