Hassoune, E. M., Jamea, A., Ammar, A., & Kaddiri, A. (2026). Study of a class of nonlinear heterogeneous diffusion with mixed phases under Lāˆž āˆ’ data. Mathematical Modelling and Analysis, 31(1), 47–62. https://doi.org/10.3846/mma.2026.23889