Results 31 to 40 of about 1,419,860 (293)

Return-to-home model for short-range human travel

open access: yesMathematical Biosciences and Engineering, 2022
In this work, we develop a mathematical model to describe the local movement of individuals by taking into account their return to home after a period of travel.
Arnaud Ducrot , Pierre Magal
doaj   +1 more source

A Generalized Diffusion Equation: Solutions and Anomalous Diffusion

open access: yesFluids, 2023
We investigate the solutions of a generalized diffusion-like equation by considering a spatial and time fractional derivative and the presence of non-local terms, which can be related to reaction or adsorption–desorption processes.
Ervin K. Lenzi   +4 more
doaj   +1 more source

Diffusion-Reorganized Aggregates: Attractors in Diffusion Processes? [PDF]

open access: yesPhysical Review Letters, 2000
4 pages, 5 ...
Marcel Filoche, Bernard Sapoval
openaire   +3 more sources

Testing Jump-Diffusion in Epileptic Brain Dynamics: Impact of Daily Rhythms

open access: yesEntropy, 2021
Stochastic approaches to complex dynamical systems have recently provided broader insights into spatial-temporal aspects of epileptic brain dynamics. Stochastic qualifiers based on higher-order Kramers-Moyal coefficients derived directly from time series
Jutta G. Kurth   +2 more
doaj   +1 more source

Remaining Useful Life Prediction for Nonlinear Degraded Equipment With Bivariate Time Scales

open access: yesIEEE Access, 2019
As the fundamental and prerequisite work of remaining useful life (RUL) prediction, degradation modeling directly affects the accuracy of RUL prediction.
Hong Pei   +6 more
doaj   +1 more source

A Compound Computational Model for Filling-In Processes Triggered by Edges: Watercolor Illusions

open access: yesFrontiers in Neuroscience, 2019
The goal of our research was to develop a compound computational model with the ability to predict different variations of the “watercolor effects” and additional filling-in effects that are triggered by edges.
Hadar Cohen-Duwek, Hedva Spitzer
doaj   +1 more source

Gerber–Shiu Function in a Class of Delayed and Perturbed Risk Model with Dependence

open access: yesRisks, 2020
This paper considers the risk model perturbed by a diffusion process with a time delay in the arrival of the first two claims and takes into account dependence between claim amounts and the claim inter-occurrence times.
Franck Adékambi, Essodina Takouda
doaj   +1 more source

Perturbed Skew Diffusion Processes

open access: yesMathematics, 2023
This work investigates whether there uniquely exists a solution to the perturbed skew diffusion process. We construct the solution by iteration and divide the whole time interval into parts on which we disperse the perturbed skew diffusion process into ...
Yingxu Tian, Haoyan Zhang
doaj   +1 more source

On conditional diffusion processes

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 1990
SynopsisIf Xt is the diffusion process associated with a second-order uniformly elliptic operator L in divergence form, then without assuming smoothness in L we prove that for each x and y in ℝd,where p is the fundamental solution to the heat equation associated with L.
Lyons, T, Zheng, W
openaire   +2 more sources

On Feller semigroup generated by solution of nonlocal parabolic conjugation problem

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2018
The paper deals with the problem of construction of Feller semigroup for one-dimensional inhomogeneous diffusion processes with membrane placed at a point whose position on the real line is determined by a given function that depends on the time variable.
B.I. Kopytko, R.V. Shevchuk
doaj   +1 more source

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