Results 31 to 40 of about 147,716 (285)

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

Non-intersection of transient branching random walks [PDF]

open access: yesProbability theory and related fields, 2019
Let G be a Cayley graph of a nonamenable group with spectral radius $$\rho < 1$$ ρ < 1 . It is known that branching random walk on G with offspring distribution $$\mu $$ μ is transient , i.e., visits the origin at most finitely often almost surely, if ...
Tom Hutchcroft
semanticscholar   +1 more source

Particle-number distribution in large fluctuations at the tip of branching random walks. [PDF]

open access: yesPhysical Review E, 2019
We investigate properties of the particle distribution near the tip of one-dimensional branching random walks at large times t, focusing on unusual realizations in which the rightmost lead particle is very far ahead of its expected position, but still ...
A. Mueller, S. Munier
semanticscholar   +1 more source

Branching random walks and multi-type contact-processes on the percolation cluster of ${\mathbb{Z}}^{d}$ [PDF]

open access: yes, 2015
In this paper we prove that, under the assumption of quasi-transitivity, if a branching random walk on ${{\mathbb{Z}}^d}$ survives locally (at arbitrarily large times there are individuals alive at the origin), then so does the same process when ...
Bertacchi, Daniela, Zucca, Fabio
core   +2 more sources

On the maximal displacement of near-critical branching random walks [PDF]

open access: yesProbability theory and related fields, 2019
We consider a branching random walk on Z\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt ...
E. Neuman, Xinghua Zheng
semanticscholar   +1 more source

Moment asymptotics for multitype branching random walks in random environment [PDF]

open access: yes, 2013
We study a discrete time multitype branching random walk on a finite space with finite set of types. Particles follow a Markov chain on the spatial space whereas offspring distributions are given by a random field that is fixed throughout the evolution ...
Gün, Onur   +2 more
core   +3 more sources

Discretization methods for homogeneous fragmentations [PDF]

open access: yes, 2004
Homogeneous fragmentations describe the evolution of a unit mass that breaks down randomly into pieces as time passes. They can be thought of as continuous time analogs of a certain type of branching random walks, which suggests the use of time ...
Bertoin, Jean, Rouault, Alain
core   +5 more sources

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

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

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

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