Results 61 to 70 of about 147,716 (285)

Branching Processes in Simple Random Walk [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
Let N ( a ) N(a) be the number of overcrossings of height a a in a simple random walk. For p > 1 / 2 p > 1/2 , the process N ( 0 ) , N ( 1 ) ,
openaire   +3 more sources

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

$N$-Branching Random Walk with $\alpha$-Stable Spine [PDF]

open access: yesTheory of Probability & Its Applications, 2017
We consider a branching-selection particle system on the real line, introduced by Brunet and Derrida. In this model the size of the population is fixed to a constant $N$. At each step individuals in the population reproduce independently, making children around their current position.
Bastien Mallein, Bastien Mallein
openaire   +5 more sources

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

open access: yesAdvanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies   +2 more
wiley   +1 more source

Supervised and unsupervised learning of -dimensional even-offspring branching annihilating random walks

open access: yesMachine Learning: Science and Technology
Machine learning (ML) of phase transitions (PTs) has gradually become an effective approach that enables us to explore the nature of various PTs more promptly in equilibrium and nonequilibrium systems.
Yanyang Wang   +3 more
doaj   +1 more source

Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi   +3 more
wiley   +1 more source

Branching Random Walks on Free Products of Groups

open access: yes, 2011
We study certain phase transitions of branching random walks (BRW) on Cayley graphs of free products. The aim of this paper is to compare the size and structural properties of the trace, i.e., the subgraph that consists of all edges and vertices that ...
Candellero, Elisabetta   +2 more
core   +3 more sources

Better Bounds for Coalescing-Branching Random Walks [PDF]

open access: yesACM Symposium on Parallelism in Algorithms and Architectures, 2016
Coalescing-branching random walks, or cobra walks for short, are a natural variant of random walks on graphs that can model the spread of disease through contacts or the spread of information in networks.
M. Mitzenmacher   +2 more
semanticscholar   +1 more source

The multitype branching random walk, II

open access: yesJournal of Multivariate Analysis, 1982
AbstractThe limiting behaviour of the multitype branching random walk is studied. A limit theorem is proven for the supercritical process. Steady‐state distributions are shown to exist for the subcritical process with immigration, and for the critical transient process beginning with Poisson random fields.
openaire   +3 more sources

Dependent double branching annihilating random walk

open access: yesElectronic Journal of Probability, 2015
35 pages, 7 ...
Balazs, Marton, Nagy, Attila László
openaire   +6 more sources

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