Summary
Branching processes exhibit a particularly rich longtime behaviour when evolving in a random environment. Then the transition from subcriticality to supercriticality proceeds in several steps, and there occurs a second ‘transition’ in the subcritical phase (besides the phase-transition from (sub)criticality to supercriticality). Here we present and discuss limit laws for branching processes in critical and subcritical i.i.d. environment. The results rely on a stimulating interplay between branching process theory and random walk theory. We also consider a spatial version of branching processes in random environment for which we derive extinction and ultimate survival criteria.
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Birkner, M., Geiger, J., Kersting, G. (2005). Branching Processes in Random Environment — A View on Critical and Subcritical Cases. In: Deuschel, JD., Greven, A. (eds) Interacting Stochastic Systems. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-27110-4_12
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DOI: https://doi.org/10.1007/3-540-27110-4_12
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-23033-5
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