当前位置: X-MOL 学术Vestnik St. Petersb. Univ. Math. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
On the Second Record Derivative of a Sequence of Exponential Random Variables
Vestnik St. Petersburg University, Mathematics ( IF 0.4 ) Pub Date : 2020-03-26 , DOI: 10.1134/s1063454120010069
V. B. Nevzorov , A. V. Stepanov

Abstract

Let Zi (i ≥ 1) be a sequence of independent and identically distributed random variables with standard exponential distribution H and let Z(n) (n ≥ 1) be the corresponding sequence of exponential records associated with Zi (i ≥ 1). Let us call the sequence Z(n) (n ≥ 1) the first “record derivative” of the sequence Zi (i ≥ 1). ν1 = Z(1). It is known that ν2 = Z(2) – Z(1), independent variables with distribution H. Let T(n) (n ≥ 1) be record times in the sequence ν1, ν2, … while Y(n) = Z(T(n)) and W(n) = Y(n) – Y(n – 1) (n ≥ 1). Let us call the sequence Y(n) (n ≥ 1) (which is the main objective of this research) the second “record derivative” of the sequence Zi (i ≥ 1). We derive the distributions of T(n), Y(n), W(n) and search for the Laplace transform of Y(n) in this paper. A limit result for the sequence Y(n) (n ≥ 1) is obtained, and methods of generation of T(n) and Y(n) are proposed.



中文翻译:

关于指数随机变量序列的二阶记录导数

摘要

ž≥1)与标准的指数分布独立同分布的随机变量的序列ħ和让ŽÑ)(Ñ ≥1)是与相关联的指数记录的相应序列ž≥1) 。让我们称序列ŽÑ)(Ñ ≥1)的第一个“记录衍生物”的序列的ž≥1)。ν 1 = Ž(1)。已知的是,ν 2 = ž(2)– Z(1),分布为H的自变量。让Ťñ)(Ñ ≥1)是ν序列中记录时间1,ν 2,...而ÿÑ)= ŽŤÑ))和w ^Ñ)= ÝÑ) - ÿÑ - 1)(ñ ≥1)。让我们称序列Yn)(n≥1)(其是主要目标本研究的)第二个“记录衍生物”的序列的ž≥1)。我们导出Tn),Yn),Wn)的分布,并在本文中搜索Yn)的拉普拉斯变换。为序列A极限结果ýÑ)(Ñ获得≥1),和产生的方法ŤÑ)和ÿÑ提出)。

更新日期:2020-03-26
down
wechat
bug