Results 31 to 40 of about 2,358,486 (249)
Oscillation Criteria of Second-Order Dynamic Equations on Time Scales
, 2021 In this paper, we consider the oscillation behavior of the following second-order nonlinear dynamic equation. λ(s)Ψ1φΔ(s)y(φ(s))ΔΔ+η(s)Φ(y(τ(s)))=0,s∈[s0,∞)T.
Jing-Feng Tian +3 more
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New Results for Kneser Solutions of Third-Order Nonlinear Neutral Differential Equations
Mathematics, 2020 In this paper, we consider a certain class of third-order nonlinear delay differential equations r w ″ α ′ v + q v x β ς v = 0 , for v ≥ v 0 , where w v = x v + p v x ϑ v .
Osama Moaaz +3 more
doaj +1 more source
Mathematics, 2021 In this work, we prove some new oscillation theorems for second-order neutral delay differential equations of the form (a(ξ)((v(ξ)+b(ξ)v(ϑ(ξ)))′))′+c(ξ)G1(v(κ(ξ)))+d(ξ)G2(v(ς(ξ)))=0 under canonical and non-canonical operators, that is, ∫ξ0∞dξa(ξ)=∞ and ...
Shyam Sundar Santra +4 more
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Note on some oscillation criteria [PDF]
Proceedings of the American Mathematical Society, 1955 then (1) must be oscillatory. Various refinements as well as variations of the criterion (3) were obtained by Hartman in [1]. The present note will be devoted to the derivation of two further criteria, given in (*) and (**) below, involving the function G(t) of (3).
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Oscillation Criteria for Second-Order Differential Systems [PDF]
Proceedings of the American Mathematical Society, 1978 Sufficient conditions for the oscillation of solutions to the differential system X ( t ) +
Ahmad, Shair, Travis, C. C.
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Oscillation criteria in delay equations
Journal of Differential Equations, 1984 Dans ce travail les auteurs donnent une méthode pour déterminer les critères d'oscillation des équations à retards aussi bien dans le cas autonome que dans le cas non autonome.
Arino, O, Györi, I, Jawhari, A
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Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif +17 more
wiley +1 more source
Oscillation criteria for third order hyperbolic characteristic initial value problems
, 1981 SynopsisSufficient conditions for oscillation of solutions to third order hyperbolic characteristic initial value problems are established. The results generalize known oscillation criteria for second order hyperbolic problems.
Norio Yoshida, C. C. Travis
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Natural Frequencies of Levodopa‐Induced Dyskinesia in Parkinson's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objectives Abnormal involuntary movements, known as dyskinesias, are common complications of levodopa treatment in patients with Parkinson's disease and can significantly impair quality of life. The underlying pathophysiology remains unclear, and current therapeutic options are limited.
Ioannis U. Isaias +3 more
wiley +1 more source
Oscillation criteria for second-order neutral delay differential equations
Electronic Journal of Qualitative Theory of Differential Equations, 2017 New sufficient conditions for oscillation of second-order neutral half-linear delay differential equations are given. Our results essentially improve, complement and simplify a number of related ones in the literature, especially those from a recent ...
Martin Bohner +2 more
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