Hang Du

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math.PR2025

Asymptotic diameter of preferential attachment model

Hang Du, Shuyang Gong, Zhangsong Li +1

We study the asymptotic diameter of the preferential attachment model $PA_{n}^{(m, δ)}$ with parameters $m \geq 2$ and $δ > 0$ . Building on the recent work \cite{VZ25},…

math.PR2025

A Proof of The Changepoint Detection Threshold Conjecture in Preferential Attachment Models

Hang Du, Shuyang Gong, Jiaming Xu

We investigate the problem of detecting and estimating a changepoint in the attachment function of a network evolving according to a preferential attachment model on $n$ vertices,…