Results 1 to 10 of about 287 (158)

Global Dynamics, Boundedness, and Semicycle Analysis of a Difference Equation

open access: yesDiscrete Dynamics in Nature and Society, 2021
In this paper, we explore local stability, attractor, periodicity character, and boundedness solutions of the second-order nonlinear difference equation. Finally, obtained results are verified numerically.
Abdul Qadeer Khan, H. El-Metwally
semanticscholar   +6 more sources

Existence of solutions with a single semicycle for a general second-order rational difference equation

open access: yesJournal of Mathematical Analysis and Applications, 2007
By making use of inclusion theorem, we show in this paper the existence of solutions with a single semicycle for a general second-order rational difference equation.
Xianyi Li
exaly   +3 more sources

The rule of semicycle and global asymptotic stability for a fourth-order rational difference equation

open access: yesComputers and Mathematics With Applications, 2005
In this paper, the rule for the lengths of positive and negative semicycles of nontrivial solutions of the following fourth-order rational difference equation,xn+1=xnbxn−2+xn−3b+axnb+xn−2xn−3b+a,n=0,1,2,…,where a, b ε [0, ∞) and the initial values x−3,x ...
Xianyi Li, Deming Zhu
exaly   +3 more sources

Global asymptotical stability of a second order rational difference equation

open access: yesComputers and Mathematics With Applications, 2007
In this paper, we investigate the boundedness, invariant interval, semicycle and global attractivity of all positive solutions of the equation xn+1=α+γxn−1A+Bxn+Cxn−1,n=0,1,…, where the parameters α,γ,A,B,C∈(0,∞) and the initial conditions y−1,y0 are ...
Lin-Xia Hu, Wan-Tong Li, Hong-Wu Xu
exaly   +3 more sources

Global behavior of a higher order nonlinear difference equation

open access: yesJournal of Mathematical Analysis and Applications, 2004
In this paper, we consider a higher order difference equation of the form x n + 1 = f ( x n , x n − k ) , n = 1 , 2 , 3 , … , under some certain assumptions. We obtain that the length of its finite semicycle is less than or equal to k.
Yong-Hong Fan, Wan-Tong Li
exaly   +3 more sources

Semicycles and correlated asymptotics of oscillatory solutions to second-order delay differential equations [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2023
We obtain several new comparison results on the distance between zeros and local extrema of solutions for the second order delay differential equation \begin{equation*} x^{\prime \prime }(t)+p(t)x(t-\tau (t))=0,~~t\geq s\text{ }\ \end{equation*} where ...
Eric P. Braverman   +2 more
semanticscholar   +3 more sources

Demonstration of fast and accurate discrimination and quantification of chemically similar species utilizing a single cross-selective chemiresistor. [PDF]

open access: yesAnal Chem, 2014
Performance characteristics of gas-phase microsensors will determine the ultimate utility of these devices for a wide range of chemical monitoring applications.
Vergara A   +3 more
europepmc   +2 more sources

Some Differential Inequalities on Time Scales and Their Applications to Feedback Control Systems [PDF]

open access: yes, 2017
This paper deals with feedback control systems on time scales. Firstly, we generalize the semicycle concept to time scales and then establish some differential inequalities on time scales.
Yong-Hong Fan, Yang-Yang Yu, Linlin Wang
semanticscholar   +2 more sources

Periodicity in a Class of Systems of Delay Difference Equations [PDF]

open access: yesJournal of Applied Mathematics, 2011
We study a system of delay difference equations modeling four-dimensional discrete-time delayed neural networks with no internal decay. Such a discrete-time system can be regarded as the discrete analog of a differential equation with piecewise constant ...
Zhijian Wei
semanticscholar   +2 more sources

Spatiotemporal gravity variations to look deep into the southern flank of Etna volcano

open access: yes, 2010
A 14-year-long microgravity data set (October 1994 to September 2007) collected along a 24-km east-west trending profile of 19 stations was analyzed to detect underground mass redistributions related to the volcanic activity involving the southern flank ...
F. Greco   +6 more
semanticscholar   +2 more sources

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