Construction of multi-soliton solutions for the $L^2$-supercritical gKdV and NLS equations
Author(s) -
Raphaël Côte,
Yvan Martel,
Frank Merle
Publication year - 2011
Publication title -
revista matemática iberoamericana
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.569
H-Index - 52
eISSN - 2235-0616
pISSN - 0213-2230
DOI - 10.4171/rmi/636
Subject(s) - nls , supercritical fluid , soliton , mathematical physics , physics , nonlinear system , quantum mechanics , biology , thermodynamics , nuclear localization sequence , microbiology and biotechnology , cytoplasm
International audienceMulti-soliton solutions, i.e. solutions behaving as the sum of N given solitons as $t\to +\infty$, were constructed in previous works for the L2 critical and subcritical (NLS) and (gKdV) equations. In this paper, we extend the construction of multi-soliton solutions to the L2 supercritical case both for (gKdV) and (NLS) equations, using a topological argument to control the direction of instability
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