Affiliation:
1. Institute of Space Sciences, P.O. Box MG-23, Com. Magurele, Ilfov, RO-077125, Romania
Abstract
We investigate the Cauchy problem for a nonlinear evolution equation, formulated in an abstract Lebesgue space, as a generalization of various Boltzmann kinetic models. Our main result provides sufficient conditions for the existence, uniqueness, and positivity of global in time solutions. The analysis extends nontrivially monotonicity methods, originally developed in the context of the existence theory for the classical Boltzmann equation in L1. Our application examples are Smoluchowski's coagulation equation, a Povzner-like equation with dissipative collisions, and a Boltzmann model with chemical reactions, for which we obtain a unitary existence theory, with improved results, compared to the literature.
Publisher
World Scientific Pub Co Pte Lt
Subject
Applied Mathematics,General Mathematics