The survival probability of a mutant in a multidimensional population.

Department of Mathematics and Statistics, McMaster University, Hamilton, Ontario, Canada.

J Math Biol. 1992;30(6):567-75. doi: 10.1007/BF00948891.

We prove a general result about the asymptomatic behaviour of the survival probability of a slightly supercritical multitype Bienaymé-Galton-Watson branching process. This is the complete analogue of a result which Ewens (1968) obtained for a Poisson branching process.