Alves, ClaudianorBoudjeriou, Tahir2025-11-19202503082105https://dspace.univ-boumerdes.dz/handle/123456789/15761In this paper, we study the Cauchy problem for pseudo-parabolic equations with a logarithmic nonlinearity. After establishing the existence and uniqueness of weak solutions within a suitable functional framework, we investigate several qualitative properties, including the asymptotic behaviour and blow-up of solutions as tâ+â . Moreover, when the initial data are close to a Gaussian function, we prove that these weak solutions exhibit either super-exponential growth or super-exponential decayenBlow-up solutionGlobal solutionPseudo-parabolic equationsGlobal existence and some qualitative properties of weak solutions for a class of pseudo-parabolic equations with a logarithmic nonlinearity in whole RNArticle