EPIDEMIC MODEL;
AGE STRUCTURE;
SEMIGROUP;
MONOTONE OPERATOR;
GLOBAL BEHAVIOR;
D O I:
10.1137/0522069
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
The global behavior of the general s --> i --> s age-structured epidemic model in a population of constant size is obtained. It is shown that there is a sharp threshold which determines the existence and global stability of an endemic state; hence, periodic solutions are ruled out. The threshold is identified as the spectral radius of a positive linear operator. The analysis employs the theory of semigroups and positive operator methods, and is based on the formulation of the problem as an abstract differential equation in a Banach space.
机构:
Shanxi Univ, Complex Syst Res Ctr, Taiyuan, Peoples R China
Shanxi Univ, Shanxi Key Lab Math Tech Complex Syst, Taiyuan, Peoples R ChinaShanxi Univ, Complex Syst Res Ctr, Taiyuan, Peoples R China
Zhou, Miao
Yang, Junyuan
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机构:
Shanxi Univ, Complex Syst Res Ctr, Taiyuan, Peoples R China
Shanxi Univ, Shanxi Key Lab Math Tech Complex Syst, Taiyuan, Peoples R ChinaShanxi Univ, Complex Syst Res Ctr, Taiyuan, Peoples R China
Yang, Junyuan
Li, Jiaxu
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机构:
Univ Louisville, Dept Math, Louisville, KY USAShanxi Univ, Complex Syst Res Ctr, Taiyuan, Peoples R China
Li, Jiaxu
Sun, Guiquan
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机构:
North Univ, Sch Math, Taiyuan, Shanxi, Peoples R ChinaShanxi Univ, Complex Syst Res Ctr, Taiyuan, Peoples R China
机构:
Manulife Life Insurance Co, Shinjuku Ku, 3-20-2 Nishishinjuku, Tokyo 1631430, JapanManulife Life Insurance Co, Shinjuku Ku, 3-20-2 Nishishinjuku, Tokyo 1631430, Japan
Okuwa, Kento
Inaba, Hisashi
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机构:
Univ Tokyo, Grad Sch Math Sci, Meguro Ku, 3-8-1 Komaba, Tokyo 1538914, JapanManulife Life Insurance Co, Shinjuku Ku, 3-20-2 Nishishinjuku, Tokyo 1631430, Japan
Inaba, Hisashi
Kuniya, Toshikazu
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机构:
Kobe Univ, Grad Sch Syst Informat, Nada Ku, 1-1 Rokkodai Cho, Kobe, Hyogo 6578501, JapanManulife Life Insurance Co, Shinjuku Ku, 3-20-2 Nishishinjuku, Tokyo 1631430, Japan