Abstract:
Critical branching processes in a varying environment behave much the same as critical Galton–Watson processes. In this note we like to confirm this finding with regard to the underlying genealogical structures. In particular, we consider the most recent common ancestor given survival and the corresponding reduced branching processes, in the spirit of Zubkov (1975) and Fleischmann and Siegmund-Schultze (1977).
Keywords:branching process, varying environment, Galton–Watson process, critical process, reduced process, most recent common ancestor, exponential distribution, Yule process.
Citation:
Götz Kersting, “On the Genealogical Structure of Critical Branching Processes in a Varying Environment”, Branching Processes and Related Topics, Collected papers. On the occasion of the 75th birthday of Andrei Mikhailovich Zubkov and 70th birthday of Vladimir Alekseevich Vatutin, Trudy Mat. Inst. Steklova, 316, Steklov Math. Inst., Moscow, 2022, 222–234; Proc. Steklov Inst. Math., 316 (2022), 209–219
\Bibitem{Ker22}
\by G\"otz~Kersting
\paper On the Genealogical Structure of Critical Branching Processes in a Varying Environment
\inbook Branching Processes and Related Topics
\bookinfo Collected papers. On the occasion of the 75th birthday of Andrei Mikhailovich Zubkov and 70th birthday of Vladimir Alekseevich Vatutin
\serial Trudy Mat. Inst. Steklova
\yr 2022
\vol 316
\pages 222--234
\publ Steklov Math. Inst.
\publaddr Moscow
\mathnet{http://mi.mathnet.ru/tm4200}
\crossref{https://doi.org/10.4213/tm4200}
\transl
\jour Proc. Steklov Inst. Math.
\yr 2022
\vol 316
\pages 209--219
\crossref{https://doi.org/10.1134/S0081543822010151}
\scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-85129085993}
Linking options:
https://www.mathnet.ru/eng/tm4200
https://doi.org/10.4213/tm4200
https://www.mathnet.ru/eng/tm/v316/p222
This publication is cited in the following 3 articles: