English

Survival and complete convergence for a spatial branching system with local regulation

Probability 2009-09-29 v1

Abstract

We study a discrete time spatial branching system on Zd\mathbb{Z}^d with logistic-type local regulation at each deme depending on a weighted average of the population in neighboring demes. We show that the system survives for all time with positive probability if the competition term is small enough. For a restricted set of parameter values, we also obtain uniqueness of the nontrivial equilibrium and complete convergence, as well as long-term coexistence in a related two-type model. Along the way we classify the equilibria and their domain of attraction for the corresponding deterministic coupled map lattice on Zd\mathbb{Z}^d.

Keywords

Cite

@article{arxiv.0711.0649,
  title  = {Survival and complete convergence for a spatial branching system with local regulation},
  author = {Matthias Birkner and Andrej Depperschmidt},
  journal= {arXiv preprint arXiv:0711.0649},
  year   = {2009}
}

Comments

Published in at http://dx.doi.org/10.1214/105051607000000221 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)

R2 v1 2026-06-21T09:39:53.575Z