Equivariant Littlewood-Richardson Skew Tableaux

Abstract

We give a positive equivariant Littlewood-Richardson rule also discovered independently by Molev. Our proof generalizes a proof by Stembridge of the ordinary Littlewood-Richardson rule. We describe a weight-preserving bijection between our indexing tableaux and the Knutson-Tao puzzles.

27 pages; notation simplified in Section 2; other minor stylistic changes; references added

Cited by in corpus (2)

• Littlewood-Richardson polynomials
• Equivariant structure constants for ordinary and weighted projective space