KINETIC FORMULATION FOR CHROMATOGRAPHY AND SOME OTHER HYPERBOLIC SYSTEMS

We present several new examples of kinetic formulations for some hyper bolic systems, which is to write an equation for a whole family of ent ropies. It appears that, in fact, several families of entropies can be represented in such a way. For instance, in the N x N chromatography case, we obtain N + 1 kinetic representations from which we recover th e invariant regions and the stability for weakly convergent initial da ta by a compensated compactness argument, including the non-strictly h yperbolic case.