English

Infection spread for the frog model on trees

Probability 2019-10-18 v6

Abstract

The frog model is an infection process in which dormant particles begin moving and infecting others once they become infected. We show that on the rooted dd-ary tree with particle density Ω(d2)\Omega(d^2), the set of visited sites contains a linearly expanding ball and the number of visits to the root grows linearly with high probability.

Keywords

Cite

@article{arxiv.1710.05884,
  title  = {Infection spread for the frog model on trees},
  author = {Christopher Hoffman and Tobias Johnson and Matthew Junge},
  journal= {arXiv preprint arXiv:1710.05884},
  year   = {2019}
}

Comments

EJP version; results on cover time on finite trees can be found at arXiv:1802.03428

R2 v1 2026-06-22T22:15:35.616Z