C. Chindris

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math.CO2026

Counting 3-way contingency tables via quiver semi-invariants

Calin Chindris, Deepanshu Prasad

Let $T_{a, b}$ be the number of $3$ -way contingency tables of size $m \times n \times p$ with two of its three plane-sum margins fixed by $\mathbf{a}=(a_1…

math.CO2024

Hive-type polytopes for quiver multiplicities and the membership problem for quiver moment cones

Calin Chindris, Brett Collins, Daniel Kline

Let $Q$ be a bipartite quiver with vertex set $Q_{0}$ such that the number of arrows between any source vertex and any sink vertex is constant. Let $I^^{2} = (I^^{2} (x))_{x \in Q_{0}}$ be a dime…