0:00 Recap
4:24 2-solitons solution as a determinant
9:17: N-solitons solution as a determinant
13:55 6.4 Asymptotics of the 2-solitons solution and phase shifts
18:00 Following the slower soliton
27:50 Following the faster soliton
34:30 Summary of the asymptotics
38:05 Plots and animation of the 2-solitons solution of KdV