In this paper, a weak version of the joint reversed hazard rate order, useful for stochastic comparison of non-independent random variables, has been defined and discussed. In particular, some relationships between the joint weak reversed hazard rate order and the usual reversed hazard rate order are established when the underlying copulas are symmetric.

中文翻译：

---

对称copulas下的联合弱逆风险率阶

在本文中，已经定义和讨论了联合逆向风险率阶数的弱版本，可用于非独立随机变量的随机比较。特别是，当底层系动词是对称的时，联合弱逆风险率顺序与通常的逆风险率顺序之间便建立了一些关系。