Extinction And Quasi-stationarity In The Stochastic Logistic Sis Model
by Ingemar NГҐsell /
2011 / English / PDF
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This volume presents explicit approximations of the quasi-stationary distribution and of the expected time to extinction from the state one and from quasi-stationarity for the stochastic logistic SIS model. The approximations are derived separately in three different parameter regions, and then combined into a uniform approximation across all three regions. Subsequently, the results are used to derive thresholds as functions of the population size N.
