Figure 3
From: Multiwaves, breathers, lump and other solutions for the Heimburg model in biomembranes and nerves
3D and corresponding contour for solution \(\upsilon _{1,3}(x, t)\) with  \(d_2=0.1,~~d_4=1,~~ d_3=1.01,~~d_6=0.3,~~ m_1=0.1,~~ m_2=1.1,~~m_4=1.6,~~ v=0.5,~~ w_1=10.2,~~w_2=6.5\).
