Results 1 to 10 of about 120 (37)

Particle Interactions Mediated by Dynamical Networks: Assessment of Macroscopic Descriptions. [PDF]

open access: yesJ Nonlinear Sci, 2018
We provide a numerical study of the macroscopic model of [3] derived from an agent-based model for a system of particles interacting through a dynamical network of links.
Barré J   +4 more
europepmc   +6 more sources

Yellow virus epidemiological analysis in red chili plants using Mittag-Leffler kernel

open access: yesAlexandria Engineering Journal, 2023
This scientific study investigates to check the dynamical behavior of yellow virus in red chilli with fractional order techniques. While attempts are being made to stop the yellow virus pandemic, a more infectious yellow virus found in red chilli is ...
Muhammad Farman   +8 more
doaj   +1 more source

Modelling and analysis tuberculosis (TB) model with hybrid fractional operator

open access: yesAlexandria Engineering Journal, 2023
In this work, we aim to propose a hybrid fractional-order model for investigation and observation of the tuberculosis (TB) disease involving constant-proportional Caputo (CPC) operator.
Muhammad Farman   +2 more
doaj   +1 more source

A new adaptive nonlinear numerical method for singular and stiff differential problems

open access: yesAlexandria Engineering Journal, 2023
In this work, a new adaptive numerical method is proposed for solving nonlinear, singular, and stiff initial value problems often encountered in real life.
Sania Qureshi   +6 more
doaj   +1 more source

Fractional mathematical modeling of the Stuxnet virus along with an optimal control problem

open access: yesAin Shams Engineering Journal, 2023
In this digital, internet-based world, it is not new to face cyber attacks from time to time. A number of heavy viruses have been made by hackers, and they have successfully given big losses to our systems.
Pushpendra Kumar   +4 more
doaj   +1 more source

Lagrange stability of semilinear differential-algebraic equations and application to nonlinear electrical circuits [PDF]

open access: yes, 2018
We study a semilinear differential-algebraic equation (DAE) with the focus on the Lagrange stability (instability). The conditions for the existence and uniqueness of global solutions (a solution exists on an infinite interval) of the Cauchy problem, as ...
Filipkovska, Maria
core   +1 more source

Fractional order COVID 19 model with transmission rout infected through environment [PDF]

open access: yes, 2022
In this paper, we study a fractional order COVID-19 model using different techniques and analysis. The sumudu transform is applied with the environment as a route of infection in society to the proposed fractional-order model. It plays a significant part
Ahmad, Aqeel   +5 more
core   +1 more source

Unconditional Stability for Multistep ImEx Schemes: Theory [PDF]

open access: yes, 2017
This paper presents a new class of high order linear ImEx multistep schemes with large regions of unconditional stability. Unconditional stability is a desirable property of a time stepping scheme, as it allows the choice of time step solely based on ...
Rosales, Rodolfo Ruben   +3 more
core   +3 more sources

Multiadaptive Galerkin Methods for ODEs III: A Priori Error Estimates [PDF]

open access: yes, 2006
The multiadaptive continuous/discontinuous Galerkin methods mcG(q) and mdG(q) for the numerical solution of initial value problems for ordinary differential equations are based on piecewise polynomial approximation of degree q on partitions in time with ...
Anders Logg   +8 more
core   +1 more source

Mean-square contractivity of stochastic $\theta$-methods [PDF]

open access: yes, 2020
The paper is focused on the nonlinear stability analysis of stochastic $\theta$-methods. In particular, we consider nonlinear stochastic differential equations such that the mean-square deviation between two solutions exponentially decays, i.e., a mean ...
D'Ambrosio, Raffaele   +1 more
core   +2 more sources

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