Solitons, Peakons, and Periodic Cuspons of a Generalized Degasperis-Procesi Equation

Figure 1

The phase portraits of system (2.5)(𝑐=𝛾). (a) 𝑔<0; (b) 𝑔=0; (c) 𝑔>0.

(a)

(b)

(c)