We also obtain the variation of the radial dispersion of velocities with r through the stability of the density wave in three-dimensional dishlike galaxies.
同时，从三维盘状星系密度波的稳定性讨论推出了径向速度弥散度的变化规律。
We analyse the common radial and time Schrdinger equation using finite differential approach, get dispersion equations of two kinds of Schrdinger equation by finite differential approach.
对普通的径向薛定谔方程和含时的薛定谔方程进行了有限差分法的分析，给出了两种薛定谔方程的有限差分法的离散方程。
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