Results 41 to 50 of about 220,579 (315)
Hierarchical equilibria of branching populations [PDF]
, 2003 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 ...
Dawson, D. A. +2 more
core +3 more sources
Localization for branching random walks in random environment
Stochastic Processes and their Applications, 2009 17 ...
Yueyun Hu, Nobuo Yoshida
openaire +3 more sources
Asymptotics for the survival probability in a killed branching random walk [PDF]
, 2010 Consider a discrete-time one-dimensional supercritical branching random walk. We study the probability that there exists an infinite ray in the branching random walk that always lies above the line of slope $\gamma-\epsilon$, where $\gamma$ denotes the ...
Gantert, Nina, Hu, Yueyun, Shi, Zhan
core +3 more sources
$1$-stable fluctuation of the derivative martingale of branching random walk [PDF]
arXiv, 2023 In this paper, we study the functional convergence in law of the fluctuations of the derivative martingale of branching random walk on the real line. Our main result strengthens the results of Buraczewski et. al. [Ann. Probab., 2021] and is the branching random walk counterpart of the main result of Maillard and Pain [Ann.
arxiv
, 2011 We consider a branching random walk on $\Z$, where the particles behave differently in visited and unvisited sites. Informally, each site on the positive half-line contains initially a cookie. On the first visit of a site its cookie is removed and particles at positions with a cookie reproduce and move differently from particles on sites without ...
Bartsch, Christian +4 more
openaire +4 more sources
Journal of Applied Clinical Medical Physics, EarlyView.Abstract The establishment of guidelines and curriculum standards for medical physics residency training is a critical component of setting expectations and competencies for the profession. Since the last publication of these standards, residency training has become integrated into the eligibility criteria for most medical physics certification bodies.
Jonathon A. Nye +16 more
wiley +1 more source
Artificial Plant Root System Growth for Distributed Optimization: Models and Emergent Behaviors
Open Life Sciences, 2016 Plant root foraging exhibits complex behaviors analogous to those of animals, including the adaptability to continuous changes in soil environments. In this work, we adapt the optimality principles in the study of plant root foraging behavior to create ...
Su Weixing +5 more
doaj +1 more source
A Branching Random Walk with a Barrier
The Annals of Applied Probability, 1991 Suppose that a child is likely to be weaker than its parent and a child who is too weak will not reproduce. What is the condition for a family line to survive? Let $b$ denote the mean number of children a viable parent will have; we suppose that this is independent of strength as long as strength is positive.
Biggins, J.D. +3 more
openaire +2 more sources
Cerebello‐Prefrontal Connectivity Underlying Cognitive Dysfunction in Spinocerebellar Ataxia Type 2
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Spinocerebellar ataxia type 2 (SCA2) is a hereditary cerebellar degenerative disorder, with motor and cognitive symptoms. The constellation of cognitive symptoms due to cerebellar degeneration is named cerebellar cognitive affective syndrome (CCAS), which has increasingly been recognized to profoundly impact patients' quality of life;
Ami Kumar +7 more
wiley +1 more source
Criticality for branching processes in random environment
, 2005 We study branching processes in an i.i.d. random environment, where the associated random walk is of the oscillating type. This class of processes generalizes the classical notion of criticality.
Afanasyev, V. I. +3 more
core +1 more source