A scaling limit theorem for controlled branching processes with a size-divisible term

Abstract: We establish general sufficient conditions for a sequence of controlled branching processes to converge weakly on the Skorokhod space. We focus on a class of controlled random variables that extends previous results by considering them as a sum of an immigration size-dependent term and a size-divisible term. Our assumptions are established in terms of the probability generating functions of the offspring and control distributions, distinguishing in this latter case between the immigration and the size-divisible parts. The limit process is a continuous-state process with dependent immigration.