Results 101 to 110 of about 166,195,107 (213)

Computation of Minimal Realizations of Periodic Systems [PDF]

open access: yes, 1998
We propose balancing related numerically reliable methods to compute minimal realizations of linear periodic systems with time-varying dimensions. The first method belongs to the family of square-root methods with guaranteed enhanced computational ...
Varga, A.
core  

Positive periodic solutions of nonlinear first-order functional difference equations with a parameter

open access: yesElectronic Journal of Differential Equations, 2011
We obtain the existence and multiplicity of positive $T$-periodic solutions for the difference equations $$ Delta x(n)=a(n,x(n))-lambda b(n)f(x(n-au(n))) $$ and $$ Delta x(n)+a(n,x(n))=lambda b(n)f(x(n-au(n))), $$ where $f(cdot)$ may be singular
Yanqiong Lu
doaj  

Almost Periodic Solutions of Differential Equations with Generalized Piecewise Constant Delay

open access: yes
In this paper, we investigate differential equations with generalized piecewise constant delay, DEGPCD in short, and establish the existence and stability of a unique almost periodic solution that is exponentially stable.
Kuo-Shou Chiu
core   +1 more source

Global Attractors of Non-autonomous Difference Equations [PDF]

open access: yes
The article is devoted to the study of global attractors of quasi-linear non-autonomous difference equations, in particular we give the conditions for the existence of a compact global attractor.
David Cheban   +2 more
core  

Periodic Solutions to Nonlinear Second-Order Difference Equations with Two-Dimensional Kernel

open access: yes
In this work, we provide conditions for the existence of periodic solutions to nonlinear, second-order difference equations of the form y(t+2)+by(t+1)+cy(t)=g(y(t)), where b and c are real parameters, c≠0, and g:R→R is ...
Daniel Maroncelli
core   +1 more source

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