Results 31 to 40 of about 186 (128)

Asymptotic behavior of solutions of sum-difference equations

Қарағанды университетінің хабаршысы. Математика сериясы, 2023
In this study, we present an investigation of the asymptotic behavior of solutions of sum-difference equations. Based on some mathematical inequalities, we have obtained our results.
H. Adiguzel, E. Can
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On oscillatory second order impulsive neutral difference equations

AIMS Mathematics, 2020
The present paper deals with the problem of oscillation for a class of second order nonlinear neutral impulsive difference equations with fixed moments of impulse effect. The technique employed here is due to the classical impulsive inequalities.
Gokula Nanda Chhatria
doaj   +1 more source

Nonoscillation properties of a nonlinear differential equation [PDF]

Proceedings of the American Mathematical Society, 1971
Sufficient conditions are given for the approach to zero of all nonoscillatory solutions of ( p ( t ) x ′ ) ′ + q ( t ) g ( x ) = f ( t ) (p(t)x’)’ + q(t)g(x ...
openaire   +1 more source

Oscillation and nonoscillation criteria for delay differential equations [PDF]

Proceedings of the American Mathematical Society, 1995
Oscillation and nonoscillation criteria for the first-order delay differential equation \[ x ′ ( t ) + p ( t ) x ( τ ( t ) ) = 0 , t ≥ t 0
Elbert, A., Stavroulakis, I. P.
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Hille–Nehari type criteria and conditionally oscillatory half-linear differential equations

Electronic Journal of Qualitative Theory of Differential Equations, 2019
We study perturbations of the generalized conditionally oscillatory half-linear equation of the Riemann–Weber type. We formulate new oscillation and nonoscillation criteria for this equation and find a perturbation such that the perturbed Riemann–Weber ...
Simona Fišnarová, Zuzana Pátíková
doaj   +1 more source

Antiprincipal solutions at infinity for symplectic systems on time scales

Electronic Journal of Qualitative Theory of Differential Equations, 2020
In this paper we introduce a new concept of antiprincipal solutions at infinity for symplectic systems on time scales. This concept complements the earlier notion of principal solutions at infinity for these systems by the second author and Šepitka ...
Iva Drimalova, Roman Simon Hilscher
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Necessary and Sufficient Conditions for Oscillation of Nonlinear Neutral Difference Systems of dim-2

Nonautonomous Dynamical Systems, 2022
This work is concerned about the necessary and sufficient conditions for oscillation of solutions of 2-dimensional nonlinear neutral delay difference systems of the form: Δ[x(n)+p(n)x(n−m)y(n)+p(n)y(n−m)]=[a(n)b(n)c(n)d(n)]  [f(x(n−α))g(y(n−β))],\Delta ...
Tripathy Arun K., Das Sunita
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Oscillation for a Class of Right Fractional Differential Equations on the Right Half Line with Damping

Discrete Dynamics in Nature and Society, Volume 2019, Issue 1, 2019., 2019
In this paper, we discuss a class of fractional differential equations of the form D-α+1y(t)·D-αy(t)-p(t)f(D-αy(t))+q(t)h∫t∞(s-t) -αy(s)ds=0.D-αy(t) is the Liouville right‐sided fractional derivative of order α ∈ (0,1). We obtain some oscillation criteria for the equation by employing a generalized Riccati transformation technique.
Hui Liu, Run Xu, Chris Goodrich
wiley   +1 more source

Riccati technique and nonoscillation of damped linear dynamic equations with the conformable derivative on time scales

Results in Applied Mathematics
In this study, we investigate the use of damped linear dynamic equations with the conformable derivative on time scales to provide sufficient conditions to guarantee nonoscillation for nontrivial solutions of both ordinary differential and discrete ...
Kazuki Ishibashi
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The Simple Finite Volume Lax‐Wendroff Weighted Essentially Nonoscillatory Schemes for Shallow Water Equations with Bottom Topography

Mathematical Problems in Engineering, Volume 2018, Issue 1, 2018., 2018
A Lax‐Wendroff‐type procedure with the high order finite volume simple weighted essentially nonoscillatory (SWENO) scheme is proposed to simulate the one‐dimensional (1D) and two‐dimensional (2D) shallow water equations with topography influence in source terms.
Changna Lu, Luoyan Xie, Hongwei Yang, Marco Pizzarelli   +3 more
wiley   +1 more source