Probabilistic aspects of $\Lambda$-coalescents in equilibrium and in evolution

Autor: Kersting, Götz, Wakolbinger, Anton
Rok vydání: 2020
Předmět:
Zdroj: Probabilistic Structures in Evolution (E. Baake and A. Wakolbinger, eds.), EMS Press, Berlin, 2021, pp. 223-246
Druh dokumentu: Working Paper
Popis: We present approximation methods which lead to law of large numbers and fluctuation results for functionals of $\Lambda$-coalescents, both in the dust-free case and in the case with a dust component. Our focus is on the tree length (or total branch length) and the total external branch length, as well as the time to the most recent common ancestor and the size of the last merger. In the second part we discuss evolving coalescents. For certain Beta-coalescents we analyse fluctuations of a class of functionals in appropriate time scales. Finally we review results of Gufler on the representation of evolving $\Lambda$-coalescents in terms of the lookdown space.
Comment: 20 pages, 5 figures, to appear in {\em Probabilistic Structures in Evolution}, E. Baake, A. Wakolbinger, eds., EMS 2020
Databáze: arXiv