The self-force of a point charge moving on a rectilinear trajectory is obtained, with no need of any explicit removal of infinities, as the negative of the time rate of change of the momentum of its retarded self-field.

中文翻译：

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从其延迟自场动量的变化率看点电荷的电磁自力

获得在直线轨迹上移动的点电荷的自力，不需要任何显式去除无穷大，作为其延迟自场动量的时间变化率的负数。