摘要
Inthispaper,westudyatypeofsusceptible-exposed-infected(SEI)epidemicmodelwithvaryingpopulationsizeandintroducetherandomperturbationoftheconstantcontactrateintotheSEIepidemicmodelduetotheuniversalexistenceoffluctuations.Undersomemoderateconditions,thedensityoftheexposedandtheinfectedindividualsexponentiallyapproacheszeroalmostsurelyarederived.Furthermore,thestochasticSEIepidemicmodeladmitsastationarydistributionaroundtheendemicequilibrium,andthesolutionisergodic.Somenumericalsimulationsarecarriedouttodemonstratetheefficiencyofthemainresults.
出版日期
2017年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)