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arXiv 2602.18784math.PR
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关于在Galton-Watson树上合作型两种类型SIR过程的注记

A note on the cooperative two-type SIR processes on Galton-Watson trees

Beijing Jiaotong University(北京交通大学);University of Hawai‘i at Mānoa(夏威夷大学马诺阿分校);Mohammed First University(穆罕默德一世大学);Jiangsu Normal University(江苏师范大学)

Ruibo Ma, Tai Heng Liu, Baghdadi Othmane, Dong Yao

AI总结:

本文研究了在Galton-Watson树上两种类型疾病合作传播的SIR过程,证明其生存概率临界值与单类型模型相同。

摘要:

在标准的图上SIR模型中,感染的顶点以速率α感染邻居,并以速率μ恢复。我们考虑一种两种类型SIR过程,其中图中的每个个体可以被两种类型的疾病A和B感染。此外,这两种疾病以合作方式相互作用,使得已被一种类型感染的个体以更高的速率获得另一种类型。我们证明,如果底层图是Galton-Watson树,并且初始时根节点同时被A和B感染,而其他所有节点都是易感的,那么两种类型SIR模型的生存概率临界值与经典单类型模型相同。

英文摘要:

In the standard SIR model on a graph, infected vertices infect their neighbors at rate $α$ and recover at rate $μ$. We consider a two-type SIR process where each individual in the graph can be infected with two types of diseases, $A$ and $B$. Moreover, the two diseases interact in a cooperative way so that an individual that has been infected with one type of disease can acquire the other at a higher rate. We prove that if the underlying graph is a Galton-Watson tree and initially the root is infected with both $A$ and $B$, while all others are susceptible, then the two-type SIR model has the same critical value for the survival probability as the classic single-type model.

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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