Traveling Waves in a Kermack-McKendric Epidemic Model

This study explores the existence of traveling wave solutions in the classical Kermack-McKendrick epidemic model with local diffusive. The findings highlight the critical role of the basic reproduction number $R_0$in shaping wave dynamics. Traveling wave solutions are shown to exist for wave speeds...

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Bibliographic Details
Main Author: Rassim Darazirar
Format: Article
Language:English
Published: Universidade Estadual do Sudoeste da Bahia (UESB) 2024-12-01
Series:Intermaths
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Online Access:https://periodicos2.uesb.br/index.php/intermaths/article/view/15692
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Summary:This study explores the existence of traveling wave solutions in the classical Kermack-McKendrick epidemic model with local diffusive. The findings highlight the critical role of the basic reproduction number $R_0$in shaping wave dynamics. Traveling wave solutions are shown to exist for wave speeds $c \geq c^*$ when $R_0> 1$, with $c^*$ denoting the minimal wave speed. Conversely, no traveling waves are observed for $c<c^*$ or $R_0<1$. Numerical simulations are employed to validate the theoretical results, demonstrating the presence of traveling waves for a range of nonlinear incidence functions and offering insights into the spatial spread.
ISSN:2675-8318