Geodesic
Finding of $N$-soliton solutions of multidimensional nonlinear equations by means of Hirota's method
Teoretičeskaâ i matematičeskaâ fizika, Tome 41 (1979) no. 1, pp. 69-76 
B. I. Shubov. Finding of $N$-soliton solutions of multidimensional nonlinear equations by means of Hirota's method. Teoretičeskaâ i matematičeskaâ fizika, Tome 41 (1979) no. 1, pp. 69-76. http://geodesic.mathdoc.fr/item/TMF_1979_41_1_a7/
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     title = {Finding of $N$-soliton solutions of multidimensional nonlinear equations by means of {Hirota's} method},
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Voir la notice de l'article provenant de la source Math-Net.Ru

An infinite set of multidimensional nonlinear equations is proposed for which Hirota's method can be used to construct one-soliton and two-soliton solutions. Some of these equations have $N$-soliton solutions for any $N$. For each of the proposed equations, a family of rational solutions is constructed. It is shown that in the case of three independent variables, this family contains two-dimensional solitons.

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