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从随机冲击到宏观尾部:Moyal分布作为流行病动态的统一框架

From Stochastic Shocks to Macroscopic Tails: The Moyal Distribution as a Unified Framework for Epidemic Dynamics

Universidad de Guanajuato(瓜纳华托大学)

Jose de Jesus Bernal-Alvarado, David Delepine, Omar Rafael Ramirez-Guzman

AI总结:

本文提出基于Moyal分布的统一框架,通过微观碰撞过程描述病毒传播,揭示宏观社会摩擦的涌现属性,用于解释极端流行病事件。

摘要:

传统流行病模型往往无法刻画现实爆发中观察到的极端波动性和重尾

英文摘要:

Traditional epidemiological models often fail to characterize the extreme volatility and heavy-tailed \new{Dragon King events (statistically and mechanistically exceptional outliers in transmission that deviate from standard scale-free distributions)}% observed in real-world outbreaks. We propose a unified model that bridges microscopic stochastic individual-based SIR with macroscopic wave decomposition using the Moyal probability density function. By treating viral transmission as a stochastic collision process, we derive a Moyal-Poisson mixture that describes secondary case distributions. Our model successfully recovers the extreme superspreading events in SARS, MERS, and COVID-19 data that standard Negative Binomial models systematically miss. Furthermore, we apply spectral decomposition to pandemic waves in Germany, \new{illustrating} that the macroscopic Social Friction ($β_w$) is a direct emergent property of microscopic Collision Shocks. This framework provides a useful \new{retrospective} descriptive tool for public health planning, emphasizing the need to manage extreme volatility rather than deterministic averages.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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