Multiplicity-free Schubert calculus

Abstract

We give a nonrecursive, combinatorial characterization of multiplicity-free products of Grassmannian Schubert classes. This answers a question of W. Fulton and extends results of J. Stembridge.

14 pages; v2 has updated references and minor edits; accepted to Canadian Bulletin of Math

Cited by in corpus (2)

• A hive model determination of multiplicity-free Schur function products and skew Schur functions
• A Combinatorial Approach to Multiplicity-Free Richardson Subvarieties of the Grassmannian