Results 21 to 30 of about 367,563 (184)

Emergence of sector and spiral patterns from a two-species mutualistic cross-feeding model

open access: yesPLoS ONE, 2022
The ubiquitous existence of microbial communities marks the importance of understanding how species interact within the community to coexist and their spatial organization.
Jiaqi Lin, Hui Sun, JiaJia Dong
doaj   +2 more sources

Stochastic modeling of spatial dependency structures of extreme precipitation in the Northern Great Plains using max-stable processes

open access: yesJournal of Water and Climate Change, 2023
The objective of this study is to quantify the spatial dependency and trend of annual maxima precipitation (annual highest daily precipitation, from 1970 to 2020) across selected weather stations in the Nelson Churchill River Basin (NCRB) of North ...
Alaba Boluwade
doaj   +1 more source

Equivalent DNA methylation variation between monozygotic co-twins and unrelated individuals reveals universal epigenetic inter-individual dissimilarity

open access: yesGenome Biology, 2021
Background Although the genomes of monozygotic twins are practically identical, their methylomes may evolve divergently throughout their lifetime as a consequence of factors such as the environment or aging. Particularly for young and healthy monozygotic
Benjamin Planterose Jiménez   +6 more
doaj   +1 more source

Parameter Estimation for SPDEs Driven by Cylindrical Stable Processes

open access: yesEuropean Journal of Mathematical Analysis, 2022
We consider infinite dimensional extension of affine models with heavy tails in finance. We study several estimators of the drift parameter in the stochastic partial differential equation driven by cylindrical stable processes.
Jaya P. N. Bishwal
doaj   +1 more source

Stochastic flow for SDEs with jumps and irregular drift term [PDF]

open access: yes, 2014
We consider non-degenerate SDEs with a $\beta$-Holder continuous and bounded drift term and driven by a Levy noise $L$ which is of $\alpha$-stable type.
Priola, Enrico
core   +2 more sources

3D stochastic modeling of flow and solute transport in karst vadose zone

open access: yesCase Studies in Chemical and Environmental Engineering, 2022
Predicting the outcome of a natural process is extremely difficult and challenging. Processes in the vadose zone are complex and transport of contaminants to the aquifers has been the subject of many previous research and models.
Dulian Zeqiraj
doaj   +1 more source

Entwined Paths, Difference Equations and the Dirac Equation [PDF]

open access: yes, 2002
Entwined space-time paths are bound pairs of trajectories which are traversed in opposite directions with respect to macroscopic time. In this paper we show that ensembles of entwined paths on a discrete space-time lattice are simply described by coupled
E. Nelson   +6 more
core   +2 more sources

Series representation of time-stable stochastic processes

open access: yesProbability and Mathematical Statistics, 2018
A stochastically continuous process ξt, t≥­0, is said to be time-stable if the sum of n i.i.d. copies of ξ equals in distribution the time-scaled stochastic process ξnt, t≥0. The paper advances the understanding of time-stable processes by means of their LePage series representations as the sum of i.i.d.
Ilya Kiriya, Christoph Kopp
openaire   +2 more sources

Series representations of time-stable stochastic processes

open access: yes, 2015
A stochastically continuous process $ (t)$, $t\geq0$, is said to be time-stable if the sum of $n$ i.i.d. copies of $ $ equals in distribution to the time-scaled stochastic process $ (nt)$, $t\geq0$. The paper advances the understanding of time-stable processes by means of their LePage series representations.
Kopp, Christoph, Molchanov, Ilya
openaire   +3 more sources

Mathematica code for numerical generation of random process with given distribution and exponential autocorrelation function

open access: yesSoftwareX, 2018
Stochastic simulations commonly require random process generation with a predefined probability density function (PDF) and an exponential autocorrelation function (ACF).
D. Bykhovsky
doaj   +1 more source

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