Threshold behaviour of a stochastic SIR model
作者： Chunyan Ji , Daqing Jiang
DOI: 10.1016/J.APM.2014.03.037
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摘要: Abstract In this paper, we investigate the threshold behaviour of a susceptible-infected-recovered (SIR) epidemic model with stochastic perturbation. When noise is small, show that determines extinction and persistence epidemic. Compared corresponding deterministic system, value affected by white noise, which less than basic reproduction number system. On other hand, obtain large will also suppress to prevail, never happens in These results are illustrated computer simulations.
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