Results 1 to 10 of about 6,846,482 (181)

Half-linear discrete oscillation theory

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2000
Oscillatory properties of the second order half-linear difference equation $$\Delta(r_k|\Delta y_k|^{\alpha-2}\Delta y_k)+p_k|y_{k+1}|^{\alpha-2}y_{k+1}=0,$$ where $\alpha>1$, are investigated.
Pavel Řehák
doaj   +2 more sources

Value distribution of exponential polynomials and their role in the theories of complex differential equations and oscillation theory [PDF]

open access: yesBulletin of the London Mathematical Society, 2022
An exponential polynomial is a finite linear sum of terms P(z)eQ(z)$P(z)e^{Q(z)}$ , where P(z)$P(z)$ and Q(z)$Q(z)$ are polynomials. The early results on the value distribution of exponential polynomials can be traced back to Georg Pólya's paper ...
J. Heittokangas   +3 more
semanticscholar   +1 more source

Research on Method for Detecting Pipeline Blockages Based on Fluid Oscillation Theory

open access: yesEnergies, 2022
To address the problem of pipeline blockage detection, a mathematical model of pipeline blockage detection is established based on fluid oscillation theory. This paper proposes a governing equation of the water hammer of fluid motion in a pipeline with a
Kai Wu, Yujie Feng, Ying Xu
semanticscholar   +1 more source

Oscillation theory of q-difference equation

open access: yesJournal of Computational Mathematica, 2021
In this research article, the authors present the oscillation theory of the q-difference equation K(t)y(qt)+k(t/q)y(t/q)= r(t)y(t) where r(t) = k(t)+k(t/q)-q(t) In particular we prove that this q-difference equation is oscillatory or non-oscillatory ...
Soundarya, G. T. G, Rexma Sherine V
semanticscholar   +1 more source

Oscillation theory and semibounded canonical systems [PDF]

open access: yesJournal of Spectral Theory, 2018
Oscillation theory locates the spectrum of a differential equation by counting the zeros of its solutions. We present a version of this theory for canonical systems $Ju'=-zHu$ and then use it to discuss semibounded operators from this point of view.
C. Remling, Kyle Scarbrough
semanticscholar   +1 more source

Improved Properties of Positive Solutions of Higher Order Differential Equations and Their Applications in Oscillation Theory

open access: yesMathematics, 2023
In this article, we present new criteria for testing the oscillation of solutions of higher-order neutral delay differential equation. By deriving new monotonic properties of a class of the positive solutions of the studied equation, we establish better ...
Barakah Almarri, Osama Moaaz
doaj   +1 more source

Ethnography in Health Services Research: Oscillation Between Theory and Practice

open access: yesQualitative Health Research, 2021
The well-known divergence between what policy and protocol look like on paper, and what happens in the actual practice of daily life remains a central challenge in health services provision and research.
L. Cubellis, C. Schmid, S. von Peter
semanticscholar   +1 more source

Detection of 2FAL Furanic Compound in Transformer Oil Using Optical Spectroscopy Method and Verification Using Morse Oscillation Theory

open access: yesIEEE Access, 2020
The condition of a power transformer can be predicted based on the contents of the transformer oil. One of the most common parameters that are observed in the transformer oil is 2-Furaldehyde, a compound that is produced due to the aging of Kraft paper ...
Vimal Angela Thiviyanathan   +4 more
semanticscholar   +1 more source

Oscillation Theory for Non-Linear Neutral Delay Differential Equations of Third Order

open access: yesApplied Sciences, 2020
In this article, we study a class of non-linear neutral delay differential equations of third order. We first prove criteria for non-existence of non-Kneser solutions, and criteria for non-existence of Kneser solutions.
O. Moaaz   +3 more
semanticscholar   +1 more source

Bifurcation Structures in a Bimodal Piecewise Linear Map

open access: yesFrontiers in Applied Mathematics and Statistics, 2017
In this paper we present an overview of the results concerning dynamics of a piecewise linear bimodal map. The organizing principles of the bifurcation structures in both regular and chaotic domains of the parameter space of the map are discussed.
Anastasiia Panchuk   +2 more
doaj   +1 more source

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