The Fokas–Lenells equations: Bilinear approach

In this paper, the Fokas-Lenells equations are investigated via bilinear approach. We bilinearize unreduced system, derive double Wronskian solutions, and then, by means of a reduction technique we obtain variety solutions reduced equations. This enables us to have full profile classical nonlocal Some obtained illustrated based on asymptotic analysis. As notable new result, equation, which related real discrete eigenvalues not reported before in analytic approaches. These behave like (multi-)periodic waves or solitary with algebraic decay. addition, also two-dimensional massive Thirring model from those equation.