A Contratableau Model for K-theoretic Littlewood–Richardson Rule
Abstract
The K-theoretic Littlewood–Richardson rule, established by A. Buch, is a combinatorial method for counting the coefficients in the expansion of the product of two symmetric Grothendieck polynomials as a linear combination of symmetric Grothendieck polynomials. In this paper, we provide an explicit combinatorial formula in terms of set-valued contratableaux for the K-theoretic Littlewood--Richardson rule, generalizing the contratableau model for the classical Littlewood--Richardson rule introduced by Carré.
Fields of Study & Subjects
Fuzzy Systems and Optimization
Random Matrices and Applications
Publication details
- Journal / source
- The Electronic Journal of Combinatorics
- Volume
- 33
- Issue
- 3
- Publication date
- 26 June 2026
- Language
- EN