  We obtained equations for a thin magnetic accretion disk, using the method of
asymptotic approximation. They cannot be solved analytically-without solutions
for a magnetic field in the magnetosphere between the star and the disk, only a
set of general conditions on the solutions can be derived. To compare the
analytical results with numerical solutions, we find expressions for physical
quantities in the disk, using our results from resistive and viscous star-disk
magnetospheric interaction simulations.
