Results 1 to 10 of about 38,416 (305)

Electrons energy distribution in helium plasma, generated by fission fragments

open access: yesPhysical Sciences and Technology, 2015
The problem of ionization and excitation pair prices in any gas medium can be solved by modeling the process of exchanging energy of the primary electrons with neutrals by Monte Carlo technique.
S. Kunakov, E. Son, Zh. Bolatov
doaj  

Derivation and travelling wave analysis of phenotype-structured haptotaxis models of cancer invasion

open access: yesEuropean Journal of Applied Mathematics
We formulate haptotaxis models of cancer invasion wherein the infiltrating cancer cells can occupy a spectrum of states in phenotype space, ranging from ‘fully mesenchymal’ to ‘fully epithelial’. The more mesenchymal cells are those that display stronger
Tommaso Lorenzi   +2 more
doaj   +1 more source

A Chernoff bound for branching random walk

open access: yes, 2016
Concentration inequalities, which prove to be very useful in a variety of fields, provide fairly tight bounds for large deviation probability while central limit theorem (CLT) describes the asymptotic distribution around the mean (within scope of $\sqrt ...
Liu, Changqing
core  

Maxima of branching random walks vs. independent random walks

open access: yesStochastic Processes and their Applications, 1979
AbstractIn recent years several authors have obtained limit theorems for the location of the right most particle in a supercritical branching random walk. In this paper we will consider analogous problems for an exponentially growing number of independent random walks.
openaire   +2 more sources

Branching random walks on trees

open access: yesStochastic Processes and their Applications, 1992
Consider contact processes, branching random walks, and biased voter models, when the underlying graph is an infinite regular tree of degree \(d\) \((\geq 3)\). Continuing work of the reviewer and \textit{C. Newman} [Disorder in physical systems, Vol. in Honour of J. M. Hammersley 70th Birthday, 167-190 (1990; Zbl 0721.60121)] and \textit{R. Pemantle} [
Madras, Neal, Schinazi, Rinaldo
openaire   +2 more sources

Branching random walks and Minkowski sum of random walks

open access: yesProbability Theory and Related Fields
We show that the range of a critical branching random walk conditioned to survive forever and the Minkowski sum of two independent simple random walk ranges are intersection-equivalent in any dimension $d\ge 5$, in the sense that they hit any finite set with comparable probability, as their common starting point is sufficiently far away from the set to
Asselah, Amine   +3 more
openaire   +3 more sources

Hierarchical equilibria of branching populations [PDF]

open access: yes
The objective of this paper is the study of the equilibrium behavior of a population on the hierarchical group (Omega)N consisting of families of individuals undergoing critical branching random walk and in addition these families also develop according ...
A. Wakolbinger   +2 more
core  

Branching random walk in Z^4 with branching at the origin only

open access: yes, 2010
For the critical branching random walk in $\mathbb{Z}^{4}$ with branching at the origin only we find the asymptotic behavior of the probability of the event that there are particles at the origin at moment $t\rightarrow \infty $ and prove a Yaglom type ...
Hu, Yueyun   +2 more
core   +2 more sources

Branching random walks in random environment: A survey

open access: yes, 2020
We consider branching particle processes on discrete structures like the hypercube in a random fitness landscape (i.e., random branching/killing rates). The main question is about the location where the main part of the population sits at a late time, if the state space is large. For answering this, we take the expectation with respect to the migration
openaire   +3 more sources

Volume explored by a branching random walk on general graphs. [PDF]

open access: yesSci Rep, 2019
Bordeu I   +5 more
europepmc   +1 more source

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