...
首页> 外文期刊>Statistics & Probability Letters >The uniform approximation of the tail probability of the randomly weighted sums of subexponential random variables
【24h】

The uniform approximation of the tail probability of the randomly weighted sums of subexponential random variables

机译:次指数随机变量的随机加权总和的尾部概率的统一逼近

获取原文
获取原文并翻译 | 示例
           

摘要

Let {X-k, 1 <= k <= n} be n independent and real-valued random variables with common subexponential distribution function F. Following the work of Tang and Tsitsiashvili [Tang, Q., Tsitsiashvili, G., 2003. Randomly weighted sums of subexponential random variables with application to ruin theory, Extremes 6, 171-188], we revisit the weighted sum S-n = Sigma(n)(k=1)c(k)X(k) and we find an interval [u(x), v(x)] with u(x) down arrow 0 and v(x) up arrow infinity as x -> infinity such that the asymptotic relation P(S-n > x) similar to Sigma(n)(k=1) P(c(k)X(k) > x) holds uniformly for all weights c(k), 1 <= k <= n, taking values from this interval.
机译:令{Xk,1 <= k <= n}是具有公共次指数分布函数F的n个独立且实值的随机变量。遵循Tang和Tsitsiashvili的工作[Tang,Q.,Tsitsiashvili,G.,2003。随机加权次指数随机变量的总和应用于破产理论,极限6,171-188],我们重新计算加权总和Sn = Sigma(n)(k = 1)c(k)X(k)并发现区间[u (x),v(x)],其中u(x)向下箭头0,v(x)向上箭头无穷大,为x->无穷大,使得渐近关系P(Sn> x)类似于Sigma(n)(k = 1)P(c(k)X(k)> x)对于所有权重c(k)均等成立,1 <= k <= n,取自该区间的值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号