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STABILITY AND TRAVELING WAVES OF AN EPIDEMIC MODEL WITH RELAPSE AND SPATIAL DIFFUSION
Author(s) -
Zhiping Wang,
Rui Xu
Publication year - 2014
Publication title -
journal of applied analysis and computation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.55
H-Index - 21
eISSN - 2158-5644
pISSN - 2156-907X
DOI - 10.11948/2014016
Subject(s) - traveling wave , mathematics , steady state (chemistry) , epidemic model , stability theory , stability (learning theory) , basic reproduction number , complement (music) , diffusion , convergence (economics) , mathematical analysis , physics , computer science , demography , biology , economics , chemistry , quantum mechanics , population , machine learning , economic growth , sociology , biochemistry , nonlinear system , complementation , gene , phenotype
An epidemic model with relapse and spatial diffusion is studied. Such a model is appropriate for tuberculosis, including bovine tuberculosis in cattle and wildlife, and for herpes. By using the linearized method, the local stability of each of feasible steady states to this model is investigated. It is proven that if the basic reproduction number is less than unity, the disease-free steady state is locally asymptotically stable; and if the basic reproduction number is greater than unity, the endemic steady state is locally asymptotically stable. By the cross-iteration scheme companied with a pair of upper and lower solutions and Schauder's fixed point theorem, the existence of a traveling wave solution which connects the two steady states is established. Furthermore, numerical simulations are carried out to complement the main results.

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