3 papers
math.AC2025
Quiver semi-invariants and SAGBI bases
Liana Heuberger, Elana Kalashnikov
We introduce a new combinatorial structure of linked tableaux, which generalize the semi-standard tableaux that index a SAGBI basis of the Plücker coordinate ring of a flag variet…
math.AG2025
A toric degeneration of Kronecker moduli spaces
Elana Kalashnikov
In this paper, we show that there is a finite SAGBI basis of the coordinate ring of a Kronecker quiver moduli space, indexed by primitive semi-standard tableaux pairs. This induces…
math.CO2025
Littlewood--Richardson rules from quivers for two-step flag varieties
Linda Chen, Elana Kalashnikov, Appendix by Ellis Buckminster
Let and be two symmetric function algebras in independent sets of variables. We define vector space bases of $\bigwedge_1 \otimes_\mathbb{Z} \bigwedge_2…