A discrete time model for epidemic spread: traveling waves and spreading speeds

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Communications Faculty of Sciences University Ankara Series A1 Mathematics and Statistics
Volume:66 Issue:2
A discrete time model for epidemic spread: traveling waves and spreading speeds

A discrete time model for epidemic spread: traveling waves and spreading speeds

Authors : Özgür AYDOGMUS

Pages : 243-252

Doi:10.1501/Commua1_0000000815

View : 16 | Download : 27

Publication Date : 2017-08-01

Article Type : Research Paper

Abstract :In this paper, we aim to study spread of an epidemic in a spatiallystratifed population with non-overlapping generations. We consider mean field equation of an endemic chain-binomial process and allow individuals to disperse in the spatial habitat. To be able to model the spatial movement, we used an averaging kernel. The existence of traveling waves for traveling wave speeds greater than a certain minimum is proved. In addition, an explicit formula for the critical wave speed is given in terms of the moment generating function of the dispersal kernel and the basic reproductive ratio of the infectives
Keywords : Epidemic, spread of infectives, asymptotic speed of propagation, traveling waves

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