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arXiv 2004.14352math.PR
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细胞分裂下病毒种群的两级分枝模型

Two level branching model for virus population under cell division

Luis Osorio, Anita Winter

摘要:

本文研究了细胞分裂下病毒种群的两层分枝模型。我们假设细胞携带病毒种群,这些病毒种群作为具有竞争的分支粒子系统进化,而细胞根据Yule过程分裂,从而将它们的病毒种群分成两个独立进化的亚群。然后,我们假设病毒种群的规模是巨大的,并描述了快速分支率和巨大的人口密度极限作为一个适定的鞅问题的解决方案。虽然验证紧密性是相当标准的,我们提供了一个费曼-卡茨对偶关系得出唯一性。此外,对偶关系允许进一步研究的长期行为的模型。

英文摘要:

In this paper we study a two-level branching model for virus populations under cell division. We assume that the cells are carrying virus populations which evolve as a branching particle system with competition, while the cells split according to a Yule process thereby dividing their virus populations into two independently evolving sub-populations. We then assume that sizes of the virus populations are huge and characterize the fast branching rate and huge population density limit as the solution of a well-posed martingale problem. While verifying tightness is quite standard, we provide a Feynman-Kac duality relation to conclude uniqueness. Moreover, the duality relation allows for a further study of the long term behavior of the 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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