Results 21 to 30 of about 484,711 (243)

Three classifications on branching processes and their behavior for finding the solution of nonlinear integral equations

open access: yesMathematical Modelling and Analysis, 2010
In this paper, we consider the Monte Carlo method for finding the solution of nonlinear integral equations at a fixed point xo‐ In this method, simulated Galton‐Watson branching process is employed for solving the proposed integral equation.
Behrouz Fathi Vajargah, Mojtaba Moradi
doaj   +1 more source

A critical branching process model for biodiversity [PDF]

open access: yes, 2004
Motivated as a null model for comparison with data, we study the following model for a phylogenetic tree on $n$ extant species. The origin of the clade is a random time in the past, whose (improper) distribution is uniform on $(0,\infty)$.
Aldous, David J., Popovic, Lea
core   +2 more sources

Simply generated trees, conditioned Galton―Watson trees, random allocations and condensation: Extended abstract [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We give a unified treatment of the limit, as the size tends to infinity, of random simply generated trees, including both the well-known result in the standard case of critical Galton-Watson trees and similar but less well-known results in the other ...
Svante Janson
doaj   +1 more source

The total mass of super-Brownian motion upon exiting balls and Sheu's compact support condition [PDF]

open access: yes, 2013
We study the total mass of a d-dimensional super-Brownian motion as it first exits an increasing sequence of balls. The process of the total mass is a time-inhomogeneous continuous-state branching process, where the increasing radii of the balls are ...
Hesse, Marion, Kyprianou, Andreas E.
core   +3 more sources

The Height of List-tries and TST [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
We characterize the asymptotics of heights of the trees of de la Briandais and the ternary search trees (TST) of Bentley and Sedgewick. Our proof is based on a new analysis of the structure of tries that distinguishes the bulk of the tree, called the ...
N. Broutin, L. Devroye
doaj   +1 more source

Estimating the risk of re-emergence after stopping polio vaccination

open access: yesFrontiers in Microbiology, 2012
Live vaccination against polio has effectively prevented outbreaks in most developed countries for more than 40 years, and there remain only a few countries where outbreaks of poliomyelitis by the wild strain still threaten the community.
Akira eSasaki   +3 more
doaj   +1 more source

The Lung Vasculature: A Driver or Passenger in Lung Branching Morphogenesis?

open access: yesFrontiers in Cell and Developmental Biology, 2021
Multiple cellular, biochemical, and physical factors converge to coordinate organogenesis. During embryonic development, several organs such as the lung, salivary glands, mammary glands, and kidneys undergo rapid, but intricate, iterative branching. This
Yelda Pakize Kina   +3 more
doaj   +1 more source

Modeling of interstitial branching of axonal networks [PDF]

open access: yes, 2013
A single axon can generate branches connecting with plenty synaptic targets. Process of branching is very important for making connections in central nervous system.
Gafarov, F.   +2 more
core   +2 more sources

Critical branching processes in a sparse random environment

open access: yesModern Stochastics: Theory and Applications, 2023
We introduce a branching process in a sparse random environment as an intermediate model between a Galton–Watson process and a branching process in a random environment.
Dariusz Buraczewski   +3 more
doaj   +1 more source

On subcritical multi-type branching process in random environment [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
We investigate a multi-type Galton-Watson process in a random environment generated by a sequence of independent identically distributed random variables.
Elena Dyakonova
doaj   +1 more source

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