Figure 1From: Soliton solutions to the time-dependent coupled KdV–Burgers’ equationOscillatory soliton solution (left) and dark soliton solution (right) given by equation (3.16) with \(A = 1\), \(B = 1\), \(a_{0} = c_{0} = d_{1} = 1\), and \(\tau _{1} ( t ) = \exp (t) + \sec (t) \tan (t) + t\)Back to article page