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孙丹丹,李盈科,滕志东,张太雷

Analysis of the Stability for Measles Epidemic Model with Age-Structured

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图 3 取$ \xi = 0.23 $, 此时$ {\cal R}_{0} = 0.8303<1 $, 解收敛于无病平衡点$ T_{0} = (S^{0}, v^{0}(a), 0, 0, 0) $