Geodesic
On the multiply connectedness of level lines $m\pi$ of $n$-soliton solutions of the sine-Gordon equation
Fundamentalʹnaâ i prikladnaâ matematika, Tome 11 (2005) no. 1, pp. 255-263 
O. D. Viktorova. On the multiply connectedness of level lines $m\pi$ of $n$-soliton solutions of the sine-Gordon equation. Fundamentalʹnaâ i prikladnaâ matematika, Tome 11 (2005) no. 1, pp. 255-263. http://geodesic.mathdoc.fr/item/FPM_2005_11_1_a13/
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Voir la notice de l'article provenant de la source Math-Net.Ru

The behavior of level lines $z=m\pi$ of multi-soliton solutions of the sine-Gordon equation is considered.

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