Bifurcations, chaotic behaviour, sensitivity analysis, and diverse soliton structures for fractional nonlinear Kraenkel-Manna-Merle system adopting two techniques - Xiaoming Wang; Maham Nageen; Muhammad Abbas; Muhammad Zain Yousaf; M. R. Alharthi; Essam R. El-Zahar (Mathematical and Computer Modelling of Dynamical Systems, 2025)