Results 1 to 10 of about 66,116 (307)

A sharp oscillation criterion for a difference equation with constant delay [PDF]

open access: goldAdvances in Difference Equations, 2020
It is known that all solutions of the difference equation Δ x ( n ) + p ( n ) x ( n − k ) = 0 , n ≥ 0 , $$\Delta x(n)+p(n)x(n-k)=0, \quad n\geq0, $$ where { p ( n ) } n = 0 ∞ $\{p(n)\}_{n=0}^{\infty}$ is a nonnegative sequence of reals and k is a natural
Vasileios Benekas   +2 more
doaj   +2 more sources

A remark on an oscillation constant in the half-linear oscillation theory

open access: yesApplied Mathematics Letters, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ondřej Došlý
exaly   +3 more sources

Terrestrial matter effects on reactor antineutrino oscillations: constant vs. fluctuated density profiles [PDF]

open access: diamondJournal of High Energy Physics
The JUNO Collaboration has recently released its first reactor antineutrino oscillation result, achieving unprecedented precision in the measurement of ∆ m 21 2 $$ \Delta {m}_{21}^2 $$ and sin2 θ 12.
Yu-Feng Li   +3 more
doaj   +2 more sources

Oscillation and Attractivity in a Differential Equation with Piecewise Constant Arguments [PDF]

open access: bronzeRocky Mountain Journal of Mathematics, 1993
The equation with piecewise constant arguments (1) \(N'(t) = rN(t) [1 - \sum^ m_{j = 0} (a_ j N([t - k_ j]) + b_ j N^ 2([t-k_ j]))]\), in which \([\cdot]\) denotes the greatest integer function, \(r>0\), \(k_ j\) nonnegative integers, \(a_ j\), \(b_ j \geq 0\), \(a_ j + b_ j > 0\), is considered.
I. W. Rodrigues
openalex   +3 more sources

Oscillation of a nonlinear impulsive differential equation system with piecewise constant argument [PDF]

open access: goldAdvances in Difference Equations, 2018
We deal with a nonlinear impulsive differential equation system with piecewise constant argument. We prove the existence and uniqueness of a solution. Moreover, we obtain sufficient conditions for the oscillation of the solution.
Fatma Karakoc   +2 more
doaj   +2 more sources

A Constant Frequency Oscillator and its Oscillation Frequency

open access: diamondProceedings of the Imperial Academy, 1927
H. Nukiyama, Kenzo Nagai
openalex   +3 more sources

Oscillation in the Food Rations for Neutral Differential Equation with Piecewise Constant

open access: goldJournal of Engineering
There are numerous real-world applications for delay differential equations, including engineering model systems with time delays, such as control systems and communication networks, time-limited meals, blood pressure, hemopoiesis, and others ...
Sora Ali Majeed, Hussain Ali Mohamad
doaj   +3 more sources

Constants of Motion of the Harmonic Oscillator [PDF]

open access: yesMathematical Physics, Analysis and Geometry, 2020
We prove that Weyl quantization preserves constant of motion of the Harmonic Oscillator. We also prove that if $f$ is a classical constant of motion and $\mathfrak{Op}(f)$ is the corresponding operator, then $\mathfrak{Op}(f)$ maps the Schwartz class into itself and it defines an essentially selfadjoint operator on $L^2(\mathbb R^n)$. As a consequence,
Fabián Belmonte, Sebastián Cuéllar
openaire   +3 more sources

Oscillation criteria for linear difference equations with several variable delays [PDF]

open access: yesOpuscula Mathematica, 2021
We obtain new sufficient criteria for the oscillation of all solutions of linear delay difference equations with several (variable) finite delays. Our results relax numerous well-known limes inferior-type oscillation criteria from the literature by ...
Vasileios Benekas   +3 more
doaj   +1 more source

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