摘要
本文考虑了索赔时间间距为广义Erlang(n)分布的带干扰更新(Sparre Andersen)风险过程. 所用的方法类似于Albrecher, et al.(2005), 即将广义Erlang(n)随机变量分解成n个独立的指数随机变量的和. 建立了破产前最大盈余所满足的积分-微分方程, 讨论了索赔量分布为Km分布时的特殊情形.
In this paper,we discuss a renewal risk process(Sparre Andersen risk model) perturbed by diffusion in which the claim inter-arrival times are generalized Erlang(n) distributed.The approach used is similar to that of Albrecher,et al.(2005),decomposing a generalized Erlang(n) random variable into an independent sum of n exponential random variables.Integro-differential equations with certain boundary conditions for the distribution of the maximum surplus before ruin are obtained.The special case where the claim size distribution is a Km distribution is considered.
出处
《应用概率统计》
CSCD
北大核心
2011年第3期256-264,共9页
Chinese Journal of Applied Probability and Statistics
基金
Supported by the Research Foundation of Education Bureau of Hunan Province (10C0754)