Traveling wave solutions for a diffusive SIR model
碩士 === 國立政治大學 === 應用數學系 === 105 === In this thesis, we study the existence of traveling waves of a reaction-diffusion equation for a diffusive epidemic SIR model s_t = d_1 s_xx − βsi/(s + i), i_t = d_2 i_xx + βsi/(s + i) − γi, r_t = d_3 r_xx + γi, which describes an infec...
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ndltd-TW-105NCCU55070012019-05-15T23:09:26Z http://ndltd.ncl.edu.tw/handle/29m432 Traveling wave solutions for a diffusive SIR model 一個具擴散性的SIR模型之行進波解 Yu, Chen Tzung 余陳宗 碩士 國立政治大學 應用數學系 105 In this thesis, we study the existence of traveling waves of a reaction-diffusion equation for a diffusive epidemic SIR model s_t = d_1 s_xx − βsi/(s + i), i_t = d_2 i_xx + βsi/(s + i) − γi, r_t = d_3 r_xx + γi, which describes an infectious disease outbreak in a closed population. Here β is the transmission coefficient, γ is the recovery or remove rate, and s, i, and r rep-resent numbers of susceptible individuals, infected individuals, and removed individuals, respectively, and d_1, d_2, and d_3 are their diffusion rates. We use the Schauder fixed point theorem, the Arzela-Ascoli theorem, and the maximum principle to show that this system has a traveling wave solution with minimum speed c=c*:=2√(d2( β - γ )). Our result answers an open problem proposed in [11]. Fu, Sheng Chen 符聖珍 學位論文 ; thesis 23 en_US |
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碩士 === 國立政治大學 === 應用數學系 === 105 === In this thesis, we study the existence of traveling waves of a reaction-diffusion equation for a diffusive epidemic SIR model
s_t = d_1 s_xx − βsi/(s + i),
i_t = d_2 i_xx + βsi/(s + i) − γi,
r_t = d_3 r_xx + γi,
which describes an infectious disease outbreak in a closed population. Here β is the transmission coefficient, γ is the recovery or remove rate, and s, i, and r rep-resent numbers of susceptible individuals, infected individuals, and removed individuals, respectively, and d_1, d_2, and d_3 are their diffusion rates. We use the Schauder fixed point theorem, the Arzela-Ascoli theorem, and the maximum principle to show that this system has a traveling wave solution with minimum speed c=c*:=2√(d2( β - γ )). Our result answers an open problem proposed in [11].
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Fu, Sheng Chen |
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Fu, Sheng Chen Yu, Chen Tzung 余陳宗 |
author |
Yu, Chen Tzung 余陳宗 |
spellingShingle |
Yu, Chen Tzung 余陳宗 Traveling wave solutions for a diffusive SIR model |
author_sort |
Yu, Chen Tzung |
title |
Traveling wave solutions for a diffusive SIR model |
title_short |
Traveling wave solutions for a diffusive SIR model |
title_full |
Traveling wave solutions for a diffusive SIR model |
title_fullStr |
Traveling wave solutions for a diffusive SIR model |
title_full_unstemmed |
Traveling wave solutions for a diffusive SIR model |
title_sort |
traveling wave solutions for a diffusive sir model |
url |
http://ndltd.ncl.edu.tw/handle/29m432 |
work_keys_str_mv |
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