Figure 4From: The classification of the single traveling wave solutions to \((1+1)\) dimensional Gardner equation with variable coefficients(a) The 3D graph of a hyperbolic cotangent function solution \(u(x, t)\) demonstrating Eq. (43), when \(\kappa =-6\), \(\omega = \frac{1}{2}t^{2}+t\) and \(\xi _{0}=1\); (b) the corresponding 2D graph for \(u(x, t)\), when t = 1Back to article page