We show that renormalized two-dimensional Lotka–Volterra models near criticality converge to a super-Brownian motion. This is used to establish long-term survival of a rare type for a range of parameter values near the voter model.
@article{1206018203,
author = {Cox, J. Theodore and Perkins, Edwin A.},
title = {Renormalization of the two-dimensional Lotka--Volterra model},
journal = {Ann. Appl. Probab.},
volume = {18},
number = {1},
year = {2008},
pages = { 747-812},
language = {en},
url = {http://dml.mathdoc.fr/item/1206018203}
}
Cox, J. Theodore; Perkins, Edwin A. Renormalization of the two-dimensional Lotka–Volterra model. Ann. Appl. Probab., Tome 18 (2008) no. 1, pp. 747-812. http://gdmltest.u-ga.fr/item/1206018203/