Results 11 to 20 of about 805,112 (303)

Random walks in a sparse random environment

open access: yesElectronic Journal of Probability, 2016
We introduce random walks in a sparse random environment on $\mathbb Z$ and investigate basic asymptotic properties of this model, such as recurrence-transience, asymptotic speed, and limit theorems in both the transient and recurrent regimes. The new model combines features of several existing models of random motion in random media and admits a ...
Matzavinos, Anastasios   +2 more
openaire   +6 more sources

Perfect matchings in inhomogeneous random bipartite graphs in random environment

open access: yesCubo, 2022
In this note we study inhomogeneous random bipartite graphs in random environment. These graphs can be thought of as an extension of the classical Erd\H os-R\'enyi random bipartite graphs in a random environment.
Jairo Bochi   +2 more
doaj   +3 more sources

Random walks in random environment with Markov dependence on time

open access: yesCondensed Matter Physics, 2008
We consider a simple model of discrete-time random walk on Ζν, ν=1,2,... in a random environment independent in space and with Markov evolution in time. We focus on the application of methods based on the properties of the transfer matrix and on spectral
C.Boldrighini   +2 more
doaj   +2 more sources

Numerical Simulations of Random Walk in Random Environment [PDF]

open access: yesJournal of Statistical Physics, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
von Dohlen, Brian, Conlon, Joseph G.
openaire   +4 more sources

Localization for branching random walks in random environment

open access: yesStochastic Processes and their Applications, 2009
17 ...
Hu, Yueyun, Yoshida, Nobuo
openaire   +4 more sources

Branching random walk in random environment on trees

open access: yesStochastic Processes and their Applications, 2003
The authors consider a supercritical branching random walk on a rooted tree with random environment, the special attention being paid to the case where both the branching and the step transition parameters are random quantities. For this model criteria of recurrence (strong recurrence) and transience (strong transience) are presented.
Machado, F.P., Popov, S.Yu.
openaire   +3 more sources

Random walks in random hypergeometric environment [PDF]

open access: yes, 2020
We consider one-dependent random walks on Zd in random hypergeometric environment for d≥3. These are memory-one walks in a large class of environments parameterized by positive weights on directed edges and on pairs of directed edges which includes the ...
Sabot, Christophe, Orenshtein, Tal
core   +1 more source

Random Walks in Random Environment [PDF]

open access: yesJournal of Physics A: Mathematical and General, 2006
Random walks in random environments (RWRE's) have been a source of surprising phenomena and challenging problems since they began to be studied in the 70's. Hitting times and, more recently, certain regeneration structures, have played a major role in our understanding of RWRE's. We review these and provide some hints on current research directions and
openaire   +4 more sources

A Two-Stage Mutation Stochastic Model of Carcinogenesis Driven by a Two Level Random Environment [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2020
In this paper, we present a two-stage stochastic model of carcinogenesis in a two level random environment. The random environment switches between two levels, say, 1 and 2 alternately.
V. S. S. Yadavalli   +3 more
doaj   +1 more source

Degenerate random environments [PDF]

open access: yesRandom Structures & Algorithms, 2012
AbstractWe consider connectivity properties of certain i.i.d. random environments on, where at each location some steps may not be available. Site percolation and oriented percolation are examples of such environments. In these models, one of the quantities most often studied is the (random) set of vertices that can be reached from the origin by ...
Mark Holmes, Thomas S. Salisbury
openaire   +2 more sources

Home - About - Disclaimer - Privacy