Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/28569
Title: Spreading speed for a West Nile virus model with free boundary
Contributor(s): Wang, Zhiguo (author); Nie, Hua (author); Du, Yihong  (author)orcid 
Publication Date: 2019
DOI: 10.1007/s00285-019-01363-2
Handle Link: https://hdl.handle.net/1959.11/28569
Abstract: The purpose of this paper is to determine the precise asymptotic spreading speed of the virus for a West Nile virus model with free boundary, introduced recently in Lin and Zhu (J Math Biol 75:1381–1409, 2017), based on a model of Lewis et al. (Bull Math Biol 68:3–23, 2006).We show that this speed is uniquely defined by a semiwave solution associated with theWest Nile virus model. To find such a semiwave solution, we firstly consider a general cooperative system over the half-line [0,∞), and prove the existence of amonotone solution by an upper and lower solution approach; we then establish the existence and uniqueness of the desired semiwave solution by applying this method together with some other techniques including the sliding method. Our result indicates that the asymptotic spreading speed of theWest Nile virus model with free boundary is strictly less than that of the corresponding model in Lewis et al. (2006).
Publication Type: Journal Article
Grant Details: ARC/DP150101867
Source of Publication: Journal of Mathematical Biology, 79(2), p. 433-466
Publisher: Springer
Place of Publication: Germany
ISSN: 1432-1416
0303-6812
Fields of Research (FoR) 2008: 010110 Partial Differential Equations
010202 Biological Mathematics
Fields of Research (FoR) 2020: 490102 Biological mathematics
490410 Partial differential equations
Socio-Economic Objective (SEO) 2008: 970101 Expanding Knowledge in the Mathematical Sciences
Socio-Economic Objective (SEO) 2020: 280118 Expanding knowledge in the mathematical sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Science and Technology

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