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Stability of steady states and existence of travelling waves in a vector-disease model

Published online by Cambridge University Press:  12 July 2007

Shigui Ruan  and
Dongmei Xiao
Shigui Ruan
Affiliation:
Department of Mathematics, University of Miami, PO Box 249085, Coral Gables, FL 33124-4250, USA (ruan@math.miami.edu)
Dongmei Xiao
Affiliation:
Department of Mathematics, Shanghai Jiaotong University, Shanghai 200030, People's Republic of China (xiaodm@sjtu.edu.cn)
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Abstract

In this paper, a host-vector model is considered for a disease without immunity in which the current density of infectious vectors is related to the number of infectious hosts at earlier times. Spatial spread in a region is modelled in the partial integro-differential equation by a diffusion term. For the general model, we first study the stability of the steady states using the contracting-convex-sets technique. When the spatial variable is one dimensional and the delay kernel assumes some special form, we establish the existence of travelling wave solutions by using the linear chain trick and the geometric singular perturbation method.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh Section A: Mathematics , Volume 134 , Issue 5 , October 2004 , pp. 991 - 1011
Copyright
Copyright © Royal Society of Edinburgh 2004

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