4 papers
A second reduction-type formula for the refined Littlewood--Richardson coefficients in type A
Siddheswar Kundu
For a permutation in the symmetric group and partitions with at most parts, the refined Littlewood--Richardson (LR) coefficients in type $A_n…
A note on canonical stable Grothendieck functions
Siddheswar Kundu
In this article, we offer a new way to prove the Murnaghan-Nakayama type rule for the stable Grothendieck polynomials, originally established by Nguyen-Hiep-Son-Thuy. Additionally,…
A contratableau model for K-theoretic Littlewood--Richardson rule
Siddheswar Kundu
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 Grothe…
Key expansion of the flagged refined skew stable Grothendieck polynomial
Siddheswar Kundu
The flagged refined stable Grothendieck polynomials of skew shapes generalize several polynomials like stable Grothendieck polynomials, flagged skew Schur polynomials. In this pape…