{ "id": "1704.04203", "version": "v1", "published": "2017-04-13T16:35:03.000Z", "updated": "2017-04-13T16:35:03.000Z", "title": "Branching processes with interactions: the subcritical cooperative regime", "authors": [ "Adrián González Casanova", "Juan Carlos Pardo", "José Luis Perez" ], "comment": "22 pages", "categories": [ "math.PR" ], "abstract": "In this paper, we introduce a particular family of processes with values on the nonnegative integers that model the dynamics of populations where individuals are allow to have different types of inter- actions. The types of interactions that we consider include pairwise: competition, annihilation and cooperation; and interaction among several individuals that can be consider as catastrophes. We call such families of processes branching processes with interactions. In particular, we prove that a process in this class has a moment dual which turns out to be a jump-diffusion that can be thought as the evolution of the frequency of a trait or phenotype. The aim of this paper is to study the long term behaviour of branching processes with interac- tions under the assumption that the cooperation parameter satisfies a given condition that we called subcritical cooperative regime. The moment duality property is useful for our purposes.", "revisions": [ { "version": "v1", "updated": "2017-04-13T16:35:03.000Z" } ], "analyses": { "keywords": [ "subcritical cooperative regime", "interaction", "long term behaviour", "cooperation parameter satisfies", "moment duality property" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable" } } }