Abstract
In a static resistive medium, a force-free magnetic field must decay exponentially with time while preserving the form of its field lines. This has been proven by Jette (1970) in an extremely complex way. In the present paper a simpler proof of the same result is given.
References
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Seehafer, N. Force-free magnetic fields in static media. Astrophys Space Sci 202, 383–386 (1993). https://doi.org/10.1007/BF00626891
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DOI: https://doi.org/10.1007/BF00626891