3 papers
math.CO2026
Skew Hives, Skew Skeps, Skew Schur Log-Concavity
Tuong Le, Son Nguyen
Knutson and Tao's hives is a combinatorial model to compute Littlewood--Richardson coefficients. Similar to hives, Speyer introduced skeps and used them to prove a Schur log-concav…
math.CO2025
A generalization of RSK to -complete posets
Son Nguyen, Joseph Vulakh, Dora Woodruff
The hook length formula for -complete posets expresses the number of linear extensions of a -complete poset in terms of hooks of . It generalizes the usual hook length…
math.CO2025
Shuffle Tableaux, Littlewood--Richardson Coefficients, and Schur Log-Concavity
Chau Nguyen, Son Nguyen, Dora Woodruff
We give a new formula for the Littlewood--Richardson coefficients in terms of peelable tableaux compatible with shuffle tableaux, in the same fashion as Remmel--Whitney rule. This…