Novel Quasi-Periodic Type Optical Solitons and the Formation of Fractal Structures in Non-integrable Nonlinear Helmholtz Equations with Phase Portraits and Chaotic Analysis. Eur. J. Pure Appl. Math. [Internet]. 2025 Nov. 5 [cited 2026 Jan. 20];18(4):6764. Available from: https://www.ejpam.com/index.php/ejpam/article/view/6764