Results 21 to 30 of about 220,579 (315)

A Note on the Transience of Critical Branching Random Walks on the Line [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Gantert and Müller (2006) proved that a critical branching random walk (BRW) on the integer lattice is transient by analyzing this problem within the more general framework of branching Markov chains and making use of Lyapunov functions. The main purpose
Gerold Alsmeyer, Matthias Meiners
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   +4 more sources

Branching processes in random environment die slowly [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Let $Z_n,n=0,1,\ldots,$ be a branching process evolving in the random environment generated by a sequence of iid generating functions $f_0(s),f_1(s),\ldots,$ and let $S_0=0$, $S_k=X_1+ \ldots +X_k,k \geq 1$, be the associated random walk with $X_i=\log ...
Vladimir Vatutin, Andreas Kyprianou
doaj   +1 more source

Traveling/non-traveling phase transition and non-ergodic properties in the random transverse-field Ising model on the Cayley tree

open access: yesSciPost Physics, 2023
We study the random transverse field Ising model on a finite Cayley tree. This enables us to probe key questions arising in other important disordered quantum systems, in particular the Anderson transition and the problem of dirty bosons on the Cayley ...
Ankita Chakrabarti, Cyril Martins, Nicolas Laflorencie, Bertrand Georgeot, Éric Brunet, Gabriel Lemarié
doaj   +1 more source

A functional limit law for the profile of plane-oriented recursive trees. [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
We give a functional limit law for the normalized profile of random plane-oriented recursive trees. The proof uses martingale convergence theorems in discrete and continuous-time. This complements results of Hwang (2007).
Henning Sulzbach
doaj   +1 more source

The height of the Lyndon tree [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We consider the set $\mathcal{L ...
Lucas Mercier, Philippe Chassaing
doaj   +1 more source

Advancing hybrid quantum–classical computation with real-time execution

open access: yesFrontiers in Physics, 2022
The use of mid-circuit measurement and qubit reset within quantum programs has been introduced recently and several applications demonstrated that perform conditional branching based on these measurements.
Thomas Lubinski   +6 more
doaj   +1 more source

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

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

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 ...
Serguei Popov   +3 more
openaire   +5 more sources

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