Results 11 to 20 of about 159,160 (305)

Immortal branching processes [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2021
We introduce and study the dynamics of an \emph{immortal} critical branching process. In the classic, critical branching process, particles give birth to a single offspring or die at the same rates. Even though the average population is constant in time, the ultimate fate of the population is extinction.
Krapivsky, P. L., Redner, S.
openaire   +2 more sources

Period-Life of a Branching Process with Migration and Continuous Time

open access: yesMathematics, 2021
The homogeneous branching process with migration and continuous time is considered. We investigated the distribution of the period-life τ, i.e., the length of the time interval between the moment when the process is initiated by a positive number of ...
Khrystyna Prysyazhnyk   +3 more
doaj   +1 more source

Analysis of Discrete-Time Queues with Branching Arrivals

open access: yesMathematics, 2023
We consider a discrete-time single server queueing system, where arrivals stem from a multi-type Galton–Watson branching process with migration. This branching-type arrival process exhibits intricate correlation, and the performance of the corresponding ...
Dieter Fiems, Koen De Turck
doaj   +1 more source

emmalouisedavis/TTI-branching-process: TTI Analysis Code and Data

open access: yes, 2021
Code used to generate results for manuscript: Davis, E. L., Lucas, T. C., Borlase, A., Pollington, T. M., Abbott, S., Ayabina, D., ... & Klepac, P. (2020).
Emma Davis
core   +2 more sources

CALCULATION OF WEIGHT COEFFICIENTS IN CONTINUOUS PARTICLE FILTER

open access: yesНаучный вестник МГТУ ГА, 2018
This article shows the relationship between filters based on modeling of the random process paths with terminating and branching and a continuous particle filter that are related to sequential Monte Carlo methods.
K. A. Rybakov
doaj   +1 more source

Self-Similarity in Population Dynamics: Surname Distributions and Genealogical Trees

open access: yesEntropy, 2015
The frequency distribution of surnames turns out to be a relevant issue not only in historical demography but also in population biology, and especially in genetics, since surnames tend to behave like neutral genes and propagate like Y chromosomes.
Paolo Rossi
doaj   +1 more source

Timed Branching Processes [PDF]

open access: yes2010 Seventh International Conference on the Quantitative Evaluation of Systems, 2010
We study Timed Branching Processes (TBPs), a natural extension of (multitype) Branching Processes (BPs) where each entity is equipped with a finite set of private continuous variables, called clocks. Clocks grow uniformly with the same rate and using them various timing constraints can be imposed on the branching rules of the system, e.g.
Ashutosh Trivedi 0001, Dominik Wojtczak
openaire   +1 more source

On A- and B-Theoretic Elements of Branching Spacetimes [PDF]

open access: yes, 2011
This paper assesses branching spacetime theories in light of metaphysical considerations concerning time. I present the A, B, and C series in terms of the temporal structure they impose on sets of events, and raise problems for two elements of extant ...
Matt Farr, Farr, Matt
core   +1 more source

Neuronal Avalanches to Study the Coordination of Large-Scale Brain Activity: Application to Rett Syndrome

open access: yesFrontiers in Psychology, 2020
Many complex systems, such as the brain, display large-scale coordinated interactions that create ordered patterns. Classically, such patterns have been studied using the framework of criticality, i.e., at a transition point between two qualitatively ...
Rosaria Rucco   +16 more
doaj   +1 more source

In the Garden of Branching Processes

open access: yesSIAM Review, 2004
The review article summarizes the theory of multitype branching processes in continuous time. The process includes immigration which is modelled as a Poisson stream of immigrant particles. Marked Poisson processes and Campbell's formulae are applied. The extinction probability is calculated.
Karin S. Dorman   +2 more
openaire   +3 more sources

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