Showing 2025Show all
2 papers · 1 filter
math.CO2025
Richardson tableaux and noncrossing partial matchings
Peter L. Guo
Richardson tableaux are a remarkable subfamily of standard Young tableaux introduced by Karp and Precup in order to index the irreducible components of Springer fibers equal to Ric…
math.CO2025
Hybrid Grothendieck polynomials
Peter L. Guo, Mingyang Kang, Jiaji Liu
For a skew shape , we define the hybrid Grothendieck polynomial $${G}_{λ/μ}(\textbf{x};\textbf{t};\textbf{w}) =\sum_{T\in \mathrm{SVRPP}(λ/μ)} \textbf{x}^{\mathrm{ircont}(T)}\…