Inserted: 10 apr 2020
Last Updated: 22 jan 2021
Journal: Kinetic and Related Models
We propose an ODE-based derivation for a generalized class of opinion formation models either for single and multiple species (followers, leaders, trolls). The approach is purely deterministic and the evolution of the single opinion is determined by the competition between two mechanisms: the opinion diffusion and the compromise process. Such deterministic approach allows to recover in the limit an aggregation(nonlinear)diffusion system of PDEs for the macroscopic opinion densities.