T. Hu

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math.CO2026

Minimum-rank parameters of complements of threshold Kneser graphs

Tao Hu, Quanyu Tang

Let $J_{\geq s} (n, k)$ be the graph whose vertices are the $k$ -subsets of $[n]$ , with two distinct vertices adjacent whenever their intersection has size at least $s$ . Equivalently,…

math.CO2026

On the maximum product of distances of diameter $2$ point sets

Stijn Cambie, Arne Decadt, Yanni Dong +2

We consider a problem posed by Erdős, Herzog and Piranian on the maximum product of distances of a point set of order $n$ with a given diameter. We prove that it is sufficient to c…

Minimum-rank parameters of complements of threshold Kneser graphs

On the maximum product of distances of diameter 2 point sets

On the maximum product of distances of diameter $2$ point sets