Properties and morphisms of finite ultrametric spaces and their representing trees
The present paper is a brief survey of properties of finite ultrametric spaces X and
corresponding properties of the representing trees TX obtained by authors over the last six …
corresponding properties of the representing trees TX obtained by authors over the last six …
Coalescences in continuous-state branching processes
Consider a continuous-state branching population constructed as a flow of nested
subordinators. Inverting the subordinators and reversing time give rise to a flow of …
subordinators. Inverting the subordinators and reversing time give rise to a flow of …
Ultrametric location and parsimonious representation
F Plastria, F Guevara - Computers & Operations Research, 2025 - Elsevier
We consider single attractive facility location problems of general kind, with distance
measured by an ultrametric. We show that the set of destinations always contains an (and …
measured by an ultrametric. We show that the set of destinations always contains an (and …
The Ultrametric Gromov–Wasserstein Distance
We investigate compact ultrametric measure spaces which form a subset U w of the
collection of all metric measure spaces M w. In analogy with the notion of the ultrametric …
collection of all metric measure spaces M w. In analogy with the notion of the ultrametric …
Probabilistic models for the (sub) tree (s) of life
A Lambert - Brazilian Journal of Probability and Statistics, 2017 - JSTOR
The goal of these lectures is to review some mathematical aspects of random tree models
used in evolutionary biology to model species trees. We start with stochastic models of tree …
used in evolutionary biology to model species trees. We start with stochastic models of tree …
Labeled trees generating complete, compact, and discrete ultrametric spaces
O Dovgoshey, M Küçükaslan - Annals of Combinatorics, 2022 - Springer
We investigate the interrelations between labeled trees and ultrametric spaces generated by
these trees. The labeled trees, which generate complete ultrametrics, totally bounded …
these trees. The labeled trees, which generate complete ultrametrics, totally bounded …
Exchangeable coalescents, ultrametric spaces, nested interval-partitions: A unifying approach
F Foutel-Rodier, A Lambert… - The Annals of Applied …, 2021 - projecteuclid.org
Kingman's (1978) representation theorem (J. Lond. Math. Soc.(2) 18 (1978) 374–380) states
that any exchangeable partition of ℕ can be represented as a paintbox based on a random …
that any exchangeable partition of ℕ can be represented as a paintbox based on a random …
A moment approach for the convergence of spatial branching processes to the Continuum Random Tree
F Foutel-Rodier - arxiv preprint arxiv:2412.16035, 2024 - arxiv.org
We consider a general class of branching processes in discrete time, where particles have
types belonging to a Polish space and reproduce independently according to their type. If …
types belonging to a Polish space and reproduce independently according to their type. If …
Mutations on a random binary tree with measured boundary
JJ Duchamps, A Lambert - The Annals of Applied Probability, 2018 - JSTOR
Consider a random real tree whose leaf set, or boundary, is endowed with a finite mass
measure. Each element of the tree is further given a type, or allele, inherited from the most …
measure. Each element of the tree is further given a type, or allele, inherited from the most …
Recovering the Brownian coalescent point process from the Kingman coalescent by conditional sampling
A Lambert, E Schertzer - 2019 - projecteuclid.org
We consider a continuous population whose dynamics is described by the standard
stationary Fleming–Viot process, so that the genealogy of n uniformly sampled individuals is …
stationary Fleming–Viot process, so that the genealogy of n uniformly sampled individuals is …