We study the statistical moments of the soliton gas (mean field, variance, skewness, and kurtosis), which is described within the framework of the Gardner equation with negative cubic nonlinearity. The influence of the limiting (thick or table-like) soliton on the statistical moments of the soliton gas is considered. It is shown to be substantial if the thick-soliton intensity is comparable with that of the moderate-amplitude solitons.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 61, No. 8–9, pp. 700–710, August–September 2018.
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Didenkulova, E.G., Pelinovsky, E.N. The Role of a Thick Soliton in the Dynamics of the Soliton Gas Within the Framework of the Gardner Equation. Radiophys Quantum El 61, 623–632 (2019). https://doi.org/10.1007/s11141-019-09922-9
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DOI: https://doi.org/10.1007/s11141-019-09922-9