A. Engel et al., Non-linear analysis of the surface profile resulting from the one-dimensional Rosensweig instability, J MAGN MAGN, 195(1), 1999, pp. 212-219
The instability of the free surface of a ferrofluid subject to an external
magnetic field normal to the undisturbed surface is investigated in one dim
ension. Using a pertubation analysis up to fifth order in the surface defle
ction the character of the bifurcation is elucidated. Moreover, from the am
plitudes of the higher harmonics in the pertubation ansatz the approximate
static profile of the surface in the non-linear regime is obtained. (C) 199
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