Double-periodic solutions in an essentially nonlinear one-dimensional field model
Teoretičeskaâ i matematičeskaâ fizika, Tome 117 (1998) no. 2, pp. 300-307
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The existence of double-periodic solutions in the one-dimensional $(1+1)$ $\varphi^4$-model is shown numerically, and the dispersion law for the corresponding nonlinear waves is found.
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