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Some properties of Galton-Watson branching processes in varying environments. (English) Zbl 1240.60231
Summary: This article deals with some properties of Galton-Watson branching processes in varying environments. A necessary and sufficient condition for the relative recurrent state is presented, and a series of ratio limit properties of the transition probabilities are shown.

MSC:
60J80 Branching processes (Galton-Watson, birth-and-death, etc.)
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