标题： 关于具有离散扩散的滞后随机系统建模生命表的研究 显示英文标题

标题： On a retarded stochastic system with discrete diffusion modeling life tables

摘要： 本文提出了一种建模和预测死亡率的方法。通过结合死亡现象的历史演变及其随机行为，该方法在前人的研究基础上进行了改进。在第一部分，我们介绍了模型，并分析了其解的存在性及其渐近行为等数学性质。在第二部分，我们将该模型应用于预测西班牙的死亡率，结果显示它比经典方法产生了更好的结果。 显示英文摘要

摘要： This work proposes a method for modeling and forecasting mortality rates. It constitutes an improvement over previous studies by incorporating both the historical evolution of the mortality phenomenon and its random behavior. In the first part, we introduce the model and analyze mathematical properties such as the existence of solutions and their asymptotic behavior. In the second part, we apply this model to forecast mortality rates in Spain, showing that it yields better results than classical methods.