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Transformation of a soliton at a point of zero nonlinearity (1997)

Talipova, T. G. ; Pelinovskii, E. N. ; Grimshaw, R.

Springer

JETP letters 65 (1997), S. 120-125

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ISSN: 1090-6487

Keywords: 05.45.+b

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The transformation of a soliton in a zone with a sign-changing nonlinearity has been investigated on the basis of the Korteweg-de Vries equation. It is shown that after passage through the critical zone a soliton with opposite polarity is formed in the wave field and, together with the previously known mechanism of secondary-soliton generation as a result of a pedestal formed at the adiabatic stage, there also exists another mechanism which is associated with the transformation of the wave in a zone of variable nonlinearity after the critical point. It is shown that both mechanisms make approximately the same contribution to the secondary-soliton energetics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1134/1.567336

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