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R. Samanta

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Preprint Sep 2026

A Sharp Phase Transition for Killed Branching Random Walks with Heavy-Tailed Displacements

We study the survival of a branching random walk in a supercritical Galton-Watson tree subject to a deterministic, superlinear killing barrier with heavy-tailed displacements. For a fixed $m>0$, we consider a family of such barriers and kill particles whose ancestral paths fall below the barrier. Under some standing as...

R. Samanta · 0 citations

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