Results 71 to 80 of about 532 (176)

Critical multitype branching processes with infinite variance

open access: yes, 1978
The exponential limit law for the critical multitype Bienayme-Galton-Watson process is extended to a class of offspring distributions some or all of whose second moments are infinite. Several asymptotic consequences pertaining to transition probabilities
Hoppe, Fred M.   +3 more
core   +1 more source

On multitype branching processes in a random environment

open access: yesAdvances in Applied Probability, 1981
This paper is concerned with the growth of multitype branching processes in a random environment (mbpre). It is shown that, under suitable regularity conditions, the process either explodes of becomes extinct. A classification theorem is given delineating the cases of explosion or extinction.
openaire   +4 more sources

Branching Processes: Optimization, Variational Characterization, and Continuous Approximation

open access: yes, 2010
In this thesis, we use multitype Galton-Watson branching processes in random environments as individual-based models for the evolution of structured populations with both demographic stochasticity and environmental stochasticity, and investigate the ...
Wang, Ying
core  

Branching Processes with Immigration and Integer-valued Time Series [PDF]

open access: yes, 1995
In this paper, we indicate how integer-valued autoregressive time series Ginar(d) of ordre d, d ≥ 1, are simple functionals of multitype branching processes with immigration.
Dion, J.   +5 more
core  

MODELLING A MULTITYPE BRANCHING BROWNIAN MOTION: FILTERING OF A MEASURE-VALUED PROCESS

open access: yes, 2006
In the framework of marked trees, a multitype branching brownian motion, described by measure-valued processes, is studied. By applying the strong branching property, the Markov property and the expression of the generator are derived for the process ...
A. GERARDI, CECI, Claudia
core   +1 more source

Modeling cryptosporidiosis in humans and cattle: Deterministic and stochastic approaches. [PDF]

open access: yesParasite Epidemiol Control, 2023
Luhanda F, Irunde JI, Kuznetsov D.
europepmc   +1 more source

Estimation of Discrete Partially Directed Acyclic Graphical Models in Multitype Branching Processes

open access: yes, 2014
International audienceWe address the inference of discrete-state models for tree-structured data. Our aim is to introduce parametric multitype branching processes that can be efficiently estimated on the basis of data of limited size.
Fernique, Pierre   +2 more
core   +1 more source

Extreme values of spatial branching processes

open access: yes, 2021
Dans cette thèse, on s'intéresse aux valeurs extrêmes de certains processus de branchement spatiaux tels que la marche aléatoire branchante et le mouvement Brownien branchant.
Belloum, Mohamed Ali
core  

Multitype population size-dependent branching processes with dependent offspring

open access: yes
In this paper, the multitype population size-dependent branching process with dependent offspring is introduced and the probability of extinction of such a process is investigated. Sufficient conditions for both almost sure extinction and survival of the
Martínez, Rodrigo   +2 more
core  

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