Results 11 to 20 of about 1,836 (281)

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

Random walk on barely supercritical branching random walk [PDF]

open access: yesProbability Theory and Related Fields, 2019
Let $\mathcal{T}$ be a supercritical Galton-Watson tree with a bounded offspring distribution that has mean $ >1$, conditioned to survive. Let $ _{\mathcal{T}}$ be a random embedding of $\mathcal{T}$ into $\mathbb{Z}^d$ according to a simple random walk step distribution.
Remco van der Hofstad   +2 more
openaire   +3 more sources

Branching random walks II

open access: yesStochastic Processes and their Applications, 1976
AbstractA general method is developed with which various theorems on the mean square convergence of functionals of branching random walks are proven. The results cover extensions and generalizations of classical central limit analogues as well as a result of a different type.
Asmussen, Søren, Kaplan, Norman
openaire   +4 more sources

On statistical models on super trees

open access: yesJournal of High Energy Physics, 2018
We consider a particular example of interplay between statistical models related to CFT on one hand, and to the spectral properties of ODE, known as ODE/IS correspondence, on the other hand. We focus at the representation of wave functions of Schrödinger
A. S. Gorsky, S. K. Nechaev, A. F. Valov
doaj   +1 more source

Poisson–Dirichlet branching random walks

open access: yesThe Annals of Applied Probability, 2013
Published in at http://dx.doi.org/10.1214/12-AAP840 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Addario-Berry, Louigi, Ford, Kevin
openaire   +4 more sources

Stochastic Dynamics of Proteins and the Action of Biological Molecular Machines

open access: yesEntropy, 2014
It is now well established that most if not all enzymatic proteins display a slow stochastic dynamics of transitions between a variety of conformational substates composing their native state.
Michal Kurzynski, Przemyslaw Chelminiak
doaj   +1 more source

Coalescing-Branching Random Walks on Graphs [PDF]

open access: yesACM Transactions on Parallel Computing, 2013
We study a distributed randomized information propagation mechanism in networks we call the coalescing-branching random walk (cobra walk, for short). A cobra walk is a generalization of the well-studied “standard” random walk, and is useful in modeling and understanding the Susceptible-Infected- Susceptible (SIS ...
Chinmoy Dutta   +3 more
openaire   +1 more source

Branching Random Walks in a Random Killing Environment with a Single Reproduction Source

open access: yesMathematics
We consider a continuous-time branching random walk on Z in a random non-homogeneous environment. The process starts with a single particle at initial time t=0.
Vladimir Kutsenko   +2 more
doaj   +1 more source

On the Critical Parameters of Branching Random Walks

open access: yesMathematics
Given a discrete spatial structure X, we define continuous-time branching processes {ηt}t≥0 that model a population breeding and dying on X. These processes are usually called branching random walks, and ηt(x) denotes the number of individuals alive at ...
Daniela Bertacchi, Fabio Zucca
doaj   +1 more source

Survival of Branching Random Walks in Random Environment [PDF]

open access: yesJournal of Theoretical Probability, 2009
We study survival of nearest-neighbour branching random walks in random environment (BRWRE) on ${\mathbb Z}$. A priori there are three different regimes of survival: global survival, local survival, and strong local survival. We show that local and strong local survival regimes coincide for BRWRE and that they can be characterized with the spectral ...
Gantert, Nina   +3 more
openaire   +4 more sources

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