Results 21 to 30 of about 2,908,473 (291)

Entropic repulsion on a rarefied wall [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
We consider the motion of a discrete d-dimensional random surface interacting by exclusion with a rarefied wall. The dynamics is given by the serial harness process.
L. R. G. Fontes   +2 more
doaj   +1 more source

Random walk in random environment: A counterexample? [PDF]

open access: yesCommunications in Mathematical Physics, 1988
(The authors describe a family of random walks in random environment which have exponentially decaying correlations and nearest neighbour transition probabilities bounded away from zero, and yet are subdiffusive in any finite dimension. This contradicts the widespread notion that in case of short range correlations, two is the upper critical dimension ...
Bramson, Maury, Durrett, Richard
openaire   +2 more sources

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

Random-walk in Beta-distributed random environment [PDF]

open access: yesProbability Theory and Related Fields, 2016
55 pages.
Barraquand, Guillaume, Corwin, Ivan
openaire   +4 more sources

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 ...
Holmes, Mark, Salisbury, Thomas S.
openaire   +2 more sources

ROBUST CONTROL IN A RANDOM ENVIRONMENT CHARACTERIZED BY A NORMAL DISTRIBUTION OF INCOMES WITH DIFFERENT VARIANCES

open access: yesTransactions of the Karelian Research Centre of the Russian Academy of Sciences, 2015
The problem of optimal control in a random environment (also known as the two- armed bandit problem) is considered. The equations for calculating Bayes risks and losses are obtained for incomes with different variances.
Aleksey Lazutchenko
doaj   +1 more source

Reliability Analysis of a Multi-Rotor Flight Module of a Tethered Telecommunications Platform when Operating in a Random Environment

open access: yesСовременные информационные технологии и IT-образование, 2020
Among the promising directions in the framework of the concept of creating the next-generation 5G/IMT-2020 networks is the development of broadband wireless networks based on autonomous and tethered unmanned aerial vehicles (UAVs).
Dmitry Kozyrev, Duy Phuong Nguyen
doaj   +1 more source

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   +1 more source

Random Walks in Random Environments [PDF]

open access: yes, 2006
Random walks provide a simple conventional model to describe various transport processes, for example propagation of heat or diffusion of matter through a medium. However, in many practical cases the medium is highly irregular due to defects, impurities, fluctuations etc., and it is natural to model this as random environment.
openaire   +4 more sources

Random walk through fractal environments [PDF]

open access: yesPhysical Review E, 2003
22 pages, 16 figures; in press at Phys. Rev.
Isliker, H., Vlahos, L.
openaire   +3 more sources

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