Results 31 to 40 of about 118 (112)

Permanence and Existence of Periodic Solutions for Nicholson’s Blowflies Model with Feedback Control and Delay on Time Scales

open access: yesDiscrete Dynamics in Nature and Society, Volume 2018, Issue 1, 2018., 2018
Sufficient conditions are established for the permanence in a delayed Nicholson’s blowflies model with feedback control on time scales. Our investigation confirms that the bounded feedback terms do not have any influence on the permanence of this system.
Lin-Lin Wang   +2 more
wiley   +1 more source

LQR Based Optimal Topology of Hybrid‐Weighted Multiagent Systems

open access: yesMathematical Problems in Engineering, Volume 2018, Issue 1, 2018., 2018
In this paper, the optimal topology structure is studied for hybrid‐weighted leader‐follower multiagent systems (MASs). The results are developed by taking advantage of linear quadratic regulator (LQR) theory. We show that the multiagent star composite structure is the optimal topology which can enable the MAS to achieve the bipartite consensus.
Shuai Liu   +4 more
wiley   +1 more source

The semicycles of solutions of neutral difference equations

open access: yesApplied Mathematics Letters, 2000
The authors study the semicycles of solutions to the neutral delay difference equation \[ \Delta(y_n+ p_ny_{n-\tau}) +q_ny_{n-\sigma} =0. \] Here \(\{p_n\}\) and \(\{q_n\}\) are sequences of nonnegative real numbers, \(\tau\) and \(\sigma\) are positive integers. Upper bounds on the number of terms of semicycles are determined.
Zhou, Yong, Zhang, B.G.
openaire   +2 more sources

On a class of second-order nonlinear difference equation

open access: yesAdvances in Difference Equations, 2011
In this paper, we consider the rule of trajectory structure for a kind of second-order rational difference equation. With the change of the initial values, we find the successive lengths of positive and negative semicycles for oscillatory solutions of ...
Maoxin Liao, Dongsheng Li, Shuliang Zou
doaj  

ON SEMICYCLES OF SOLUTIONS OF NONLINEAR DIFFERENCE EQUATIONS WITH SEVERAL DELAYS

open access: yesDemonstratio Mathematica, 2003
The authors give an estimate of the upper bound of the number of terms of semicycles of oscillatory solutions of delay difference equations of the form: \((ax_{n+1}+bx_n)^k -(cx_n)^k + \sum_{i=1}^mp_i(n)x_{n-\sigma_i}^k=0\), where \(a,b,c\) are positive reals, \(c>b\), \(k=q/r\), \(q,r\) are odd integers, \(m,\sigma_i\) are positive integers, \(\{ p_i ...
Li, C. F., Zhou, Yong, Luo, X. N.
openaire   +2 more sources

Semicycles of solutions of nonlinear difference equations with several delays

open access: yesComputers & Mathematics with Applications, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, B.G., Zhou, Yong
openaire   +2 more sources

Endomorphisms of semicyclic n-groups

open access: yesChebyshevskii sbornik, 2021
openaire   +2 more sources

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