Primary quantities of interest in renewal theory are the expected number of renewals in (0,t], known as renewal function (denoted by U(t)), and the expected number of renewals in (t,t+h], given ...

中文翻译：

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有限间隔内预期更新周期数的细化界限

更新理论中感兴趣的主要量是 (0,t] 中的预期更新次数，称为更新函数（用 U(t) 表示），以及 (t,t+h] 中的预期更新次数，给定 。 ..