Figure 18
From: Multiwaves, breathers, lump and other solutions for the Heimburg model in biomembranes and nerves

3D and corresponding contour for solution \(\upsilon _{6,3}(x,t)\) with  \(d_1=0.1,~~d_2=0.62,~~d_6=0.03,~~d_8=0.02,~~m_1=0.05,~~v=4.5,~~w_2=0.6,~~ w_3=0.5\).