On Λ-Coalescents with Dust Component

On Λ-Coalescents with Dust Component
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关于含有粉尘成分的 Λ 成膜助剂

DOI:
10.1239/jap/1324046023
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发表时间:
2011
影响因子:
1
通讯作者:
A. Marynych
A. Marynych
中科院分区:
数学4区
文献类型:
--
作者:
A. Gnedin;A. Iksanov;A. Marynych

文献摘要

被引文献

相似文献

我们认为Λ-coalescent过程的单簇频率为正。重点类包括,例如,β (a, b)-聚结与bbb1。我们表明,这些过程的一些大样本性质可以通过耦合聚结与一个增加的lsamvy过程(从属),并利用与再生组成结构理论的相似之处推导出来。特别地,我们讨论了吸收时间和碰撞次数的极限分布。
We consider the Λ-coalescent processes with a positive frequency of singleton clusters. The class in focus covers, for instance, the beta(a, b)-coalescents with a > 1. We show that some large-sample properties of these processes can be derived by coupling the coalescent with an increasing Lévy process (subordinator), and by exploiting parallels with the theory of regenerative composition structures. In particular, we discuss the limit distributions of the absorption time and the number of collisions.