All quadratic functions have the same type of curved graphs with a line of symmetry. The graph of the quadratic function \(y = ax^2 + bx + c \) has a minimum turning point when \(a \textgreater 0 \) ...

Despite the numerous publications on nonlinear wave propagation 1,2,3,6,7, multi-soliton modes in confined nonlinear systems have received very little attention to date. Very recently Carr et al.