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Global Stability on Constant Equilibria of A SIRS Model with Diffusion Terms

SHI Rui-feng,LIU Ying-dong(School of Science,Beijing Jiaotong University,Beijing 100044,China)  
In this paper,we study a SIRS model,considering the birth and natural death of the population,with diffusion terms when the total population is taken to be constant.By constructing Liapunov functional we study the globally asymptotically stability of the nonnegative constant equilibria.
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