This paper deals with the micro–macro derivation of models from underlying description provided by methods kinetic theory for active particles. We consider so-called exotic according to definition proposed in [ N. Bellomo, Outada, J. Soler, Y. Tao and M. Winkler, Chemotaxis cross diffusion complex environments: Modeling towards a multiscale vision, Math. Models Methods Appl. Sci. 32 (2022) 713–...

Nonlocal cross-diffusion systems on the torus, arising in population dynamics and neuroscience, are analyzed. The global existence of weak solutions, weak–strong uniqueness, localization limit proved. kernels assumed to be detailed balance. proofs based entropy estimates coming from Shannon-type Rao-type entropies, while uniqueness result follows relative method. theorems hold for nondifferenti...