Xuan Wang

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20242026

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math.CO2026

On zero-sum polytopes: reciprocity, rigidity, and cyclic sieving

Dongchun Han, Xuan Wang, Hanbin Zhang +1

Let $G$ be a finite abelian group of order $n$ , and let $M (G, m)$ denote the set of zero-sum sequences over $G$ of length $m$ . We introduce the zero-sum polytope $\mathcal P…

math.CO2025

Maximum Size $t$ -Intersecting Families and Anticodes

Xuan Wang, Tuvi Etzion, Denis Krotov +1

The maximum size of $t$ -intersecting families is one of the most celebrated topics in combinatorics, and its size is known as the Erdős-Ko-Rado theorem. Such intersecting families,…

On zero-sum polytopes: reciprocity, rigidity, and cyclic sieving

Maximum Size t-Intersecting Families and Anticodes

Maximum Size $t$ -Intersecting Families and Anticodes