On Λ-Coalescents with Dust Component
On Λ-Coalescents with Dust Component
复制标题
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
中科院分区:
文献类型:
--
作者:
A. Gnedin;A. Iksanov;A. Marynych
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.