... | ... | @@ -40,7 +40,7 @@ as for the density, we consider the disk azimuthally symmetric. |
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The equation for the angular momentum ($`J=\Sigma \omega r^2`$) conservation reads:
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$` {\partial \over \partial t}(\Sigma \omega r^2)+{1\over r}{\partial \over \partial r}(r \Sigma \omega r^2 v_r) = {1\over {2\pi r}{\partial \tau \over \partial r}`$
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$`{\partial \over \partial t}(\Sigma \omega r^2)+{1\over r}{\partial \over \partial r}(r \Sigma \omega r^2 v_r) = {1\over {2\pi r}}{\partial \tau \over \partial r}`$
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## Azimuthal Velocity
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