Columbia subject headings:
Harvard subject headings:
Differential equations, Nonlinear--Asymptotic theory.
Differential equations, Partial--Asymptotic theory.
Scattering (Mathematics)
Solitons.
Princeton subject headings:
Differential equations, Nonlinear--Asymptotic theory.
Differential equations, Partial--Asymptotic theory.
Scattering (Mathematics)
Solitons.