arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.07840math.PR
收藏

变环境中具有渐近常均值矩阵的两型线性分式分支过程

Two-type linear fractional branching processes in varying environments with asymptotically constant mean matrices

Hua-Ming Wang, Huizi Yao

摘要:

考虑变环境中具有渐近常均值矩阵的两类线性分式分支过程。设$ν$为消亡时。在一定的条件下,证明了$P(ν=n)$和$P(ν>n)$都渐近地等价于均值矩阵谱半径乘积的某些函数.我们还给出了一个$P(ν=n)$以不同速度衰减的例子,如$\frac{c}{n(\log n)^2},$ $\frac{c}{n^β},β>1$等,这些速度与齐次多型Galton-Watson过程的速度有很大的不同.

英文摘要:

Consider two-type linear-fractional branching processes in varying environments with asymptotically constant mean matrices. Let $ν$ be the extinction time. Under certain conditions, we show that both $P(ν=n)$ and $P(ν>n)$ are asymptotically the same as some functions of the products of spectral radii of the mean matrices. We also give an example for which $P(ν=n)$ decays with various speeds such as $\frac{c}{n(\log n)^2},$ $\frac{c}{n^β},β>1$ et al. which are very different from the ones of homogeneous multitype Galton-Watson processes.

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。

↑