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math.PR2026
On the phase transition for the number of collisions on comb graphs
Umberto De Ambroggio, Jenson Ng, Maximilian Nitzschner +1
We consider collisions of simple random walks on comb graphs , which are obtained by attaching vertical segments of the form …
math.PR2026
Very large cliques in a scale-free random graph
Carlo De Ambroggio, Umberto De Ambroggio
In this short article we consider a preferential attachment random graph model with edge steps, studied by Alves, Ribeiro and Sanchis. Starting with an initial graph …