Coexistence in discrete time multi-type competing frog models

Document Type

Article

Publication Title

Electronic Communications in Probability

Abstract

We study coexistence in discrete time multi-type frog models. We first show that for two types of particles on Z(d), for d >= 2, for any jumping parameters p(1), p(2) is an element of (0, 1], coexistence occurs with positive probability for sufficiently rich deterministic initial configuration. We extend this to the case of random distribution of initial particles. We study the question of coexistence for multiple types and show positive probability coexistence of 2(d) types on Z(d) for rich enough initial configuration. We also show an instance of infinite coexistence on Z(d) for d >= 3 provided we have sufficiently rich initial configuration.

Publication Date

1-1-2021

Publisher

Project Euclid

Volume

Vol.26

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