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An extension of the moment closure method
1Department of Mathematics, The Royal Institute of Technology, S-100 44 Stockholm, Sweden. ingemar@math.kth.se
Theoretical Population Biology
|September 2, 2003
Abstract:
The moment closure method was recently shown in Nåsell (Theor. Popul. Biol. 63 (2) (2003a) 159) to give asymptotic approximations of the first few cumulants for the stochastic logistic model. A slight extension of the method is introduced. It is shown to be robust with regard to the specific distributional assumption that is used to achieve moment closure. The phenomenon of spurious solutions is shown to be related to the domain of attraction of the non-spurious critical point.