Results 1 to 10 of about 2,976 (212)

Sufficient conditions for polynomial asymptotic behaviour of the stochastic pantograph equation [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
This paper studies the asymptotic growth and decay properties of solutions of the stochastic pantograph equation with multiplicative noise. We give sufficient conditions on the parameters for solutions to grow at a polynomial rate in $p$-th mean and in ...
John Appleby, Evelyn Buckwar
doaj   +4 more sources

Accurate Solution for the Pantograph Delay Differential Equation via Laplace Transform

open access: yesMathematics, 2023
The Pantograph equation is a fundamental mathematical model in the field of delay differential equations. A special case of the Pantograph equation is well known as the Ambartsumian delay equation which has a particular application in Astrophysics.
Reem Alrebdi, Hind K. Al-Jeaid
doaj   +1 more source

Qualitative Properties of Positive Solutions of a Kind for Fractional Pantograph Problems using Technique Fixed Point Theory

open access: yesFractal and Fractional, 2022
The current paper intends to report the existence and uniqueness of positive solutions for nonlinear pantograph Caputo–Hadamard fractional differential equations.
Hamid Boulares   +4 more
doaj   +1 more source

An Analysis of the Theta-Method for Pantograph-Type Delay Differential Equations

open access: yesComplexity, 2022
The pantograph equation arises in electrodynamics as a delay differential equation (DDE). In this article, we provide the ϑ-method for numerical solutions of pantograph equations. We investigate the stability conditions for the numerical schemes.
Fathalla A. Rihan, Ahmed F. Rihan
doaj   +1 more source

Existence and Uniqueness Results for a Pantograph Boundary Value Problem Involving a Variable-Order Hadamard Fractional Derivative

open access: yesAxioms, 2023
This paper discusses the problem of the existence and uniqueness of solutions to the boundary value problem for the nonlinear fractional-order pantograph equation, using the fractional derivative of variable order of Hadamard type.
Kadda Maazouz   +2 more
doaj   +1 more source

Approximate solutions of hybrid stochastic pantograph equations with Levy jumps [PDF]

open access: yes, 2013
We investigate a class of stochastic pantograph differential equations with Markovian switching and Levy jumps. We prove that the approximate solutions converge to the true solutions in 퐿 2 sense as well as in probability under local Lipschitz condition ...
Mao, Wei, Mao, Xuerong
core   +4 more sources

The Energy Benefits of the Pantograph Wing Mechanism in Flapping Flight: Case Study of a Gull [PDF]

open access: yes, 2015
Bird wings generally contain a 4-bar pantograph mechanism in the forearm that enables the wrist joint to be actuated from the elbow joint thus reducing the number of wing muscles and hence reducing the wing inertia and inertial drag.
Sattler, Gene D.
core   +6 more sources

Solutions for impulsive fractional pantograph differential equation via generalized anti-periodic boundary condition

open access: yesAdvances in Difference Equations, 2020
This study investigates the solutions of an impulsive fractional differential equation incorporated with a pantograph. This work extends and improves some results of the impulsive fractional differential equation.
Idris Ahmed   +4 more
doaj   +1 more source

Modeling and analysis of transition-point disappearance in high-speed railway pantograph-catenary system

open access: yesAdvances in Mechanical Engineering, 2023
During the operation of high-speed railway, the transition-point disappearance phenomenon, which is caused by the deformation of pantograph head, poses a safety threat to the pantograph-catenary system.
Junqing Chen   +5 more
doaj   +1 more source

Assessment of the worthwhileness of efficient driving in railway systems with high-receptivity power supplies [PDF]

open access: yes, 2020
Eco-driving is one of the most important strategies for significantly reducing the energy consumption of railways with low investments. It consists of designing a way of driving a train to fulfil a target running time, consuming the minimum amount of ...
Cucala, A. P.   +4 more
core   +1 more source

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