The existence of periodic solutions of a neutral integro - differential equation with infinite delay was studied.

本文考虑具无穷时滞中立型积分微分方程周期解的存在性.

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The integro - differential equation and the explicit expression for the ruin probability are derived.

给出该模型的破产概率所满足的积分 - 微分方程及解析式.

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In this paper second order fully discrete difference method for a partial integro - differential equation is considered.

本文给出了数值求解一类偏积分微分方程的二阶差分全离散格式.

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