Fig. 4From: Traveling wave solutions of Zakharov–Kuznetsov-modified equal-width and Burger’s equations via \( {\text{exp}}( - \varphi \left( \eta \right)) \)-expansion methodSingular kink wave solution \( u_{4} \) when \( {\kern 1pt} a_{2} = 3, a_{0} = 2, y = 0, \lambda = 5, \mu = 4, c_{1} = - 2 \) Back to article page