Figure 21.9.2 (See in context.)MagnifyFigure 21.9.2: Contour plot of a two-phase solution of Equation (21.9.3).
Such a solution is given in terms of a Riemann theta function with two phases;
see Krichever (1976), Dubrovin (1981), and
Hammack et al. (1995).
Magnify