Editing Branching process (section)

==Size dependent branching processes==
Along with discussion of a more general model of branching processes known as age-dependent branching processes by Grimmett,<ref>G. R. Grimmett and D. R. Stirzaker, Probability and Random Processes, 2nd ed., Clarendon Press, Oxford, 1992.</ref> in which individuals live for more than one generation, Krishna Athreya has identified three distinctions between size-dependent branching processes which have general application. Athreya identifies the three classes of size-dependent branching processes as sub-critical, stable, and super-critical branching measures. For Athreya, the central parameters are crucial to control if sub-critical and super-critical unstable branching is to be avoided.<ref>Krishna Athreya and Peter Jagers. ''Branching Processes''. Springer. 1973.</ref> Size dependent branching processes are also discussed under the topic of [[resource-dependent branching process]]<ref>[[F. Thomas Bruss]] and M. Duerinckx (2015) "Resource dependent branching processes and the envelope of societies", Annals of Applied Probability. 25: 324–372.</ref>