Questions tagged [center-of-mass]

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Multidimensional center-of-mass coordinates for PDE solutions

In this question I'm looking for a discussion on coordinate transformations. Say I have a PDEs of the form $$ \frac{\partial}{\partial t} \, V(t,x) \ = \ \Bigg\{r(x,t) - \sum_{m=1}^D \mu_m(t,x)\frac{\...