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Explicit Asymptotic Magnetic Surfaces

Dietrich Lortz and Jürgen Nührenberg
Max-Planck-Institut fur Plasmaphysik, EURATOM-Association,
Garching
Z. Naturforsch. 86a, 317-320 (1981);

[received February 12 1981]

Toroidal magnetio fields B —fio+ ££i+ ***» where the unperturbed field Bo has closed lines of force, are considered. Single-valued formal solutions F = FQ -f e Fi -f... of the equation B * V F = 0 are explicitly determined.

If a magnetic field B only slightly deviates from