On closure of the IFR(2) and NBU(2) classes

被引：22

作者：

Franco, M ^{[1
]}

Ruiz, JM

Ruiz, MC

机构：

[1] Univ Murcia, Dept Estadist & IO, E-30100 Murcia, Spain

[2] Univ Politecn Cartagena, Dept Matemat Aplicada & Estadist, Murcia 30203, Spain

来源：

JOURNAL OF APPLIED PROBABILITY | 2001年 / 38卷 / 01期

关键词：

coherent systems; parallel systems; series systems; IFR(2); NBU(2);

D O I：

10.1017/S0021900200018647

中图分类号：

O21 [概率论与数理统计]; C8 [统计学];

学科分类号：

020208 ; 070103 ; 0714 ;

摘要：

In this note, we give some preservation results for the classes IFR(2), NBU(2) and their dual classes under the formation of special coherent systems. Further, we show with examples that the relationships among these aging classes and others are strictly one-way implications.

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收藏

页码：235 / 241

页数：7

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