Results 51 to 60 of about 7,903 (155)

Lyapunov exponents of renewal equations: Numerical approximation and convergence analysis

open access: yesDiscrete and Continuous Dynamical Systems - B
We propose a numerical method for computing the Lyapunov exponents of renewal equations (delay equations of Volterra type), consisting first in applying a discrete QR technique to the associated evolution family suitably posed on a Hilbert state space and second in reducing to finite dimension each evolution operator in the obtained time sequence.
Dimitri Breda, Davide Liessi
openaire   +2 more sources

Compactness results for quasilinear problems with variable exponent on the whole space

open access: yesElectronic Journal of Differential Equations, 2011
In this work we give a compactness result which allows us to prove the point-wise convergence of the gradients of a sequence of solutions to a quasilinear inequality and for an arbitrary open set.
Olfa Allegue, Asma Karoui Souayah
doaj  

Regularity and convergence rates for the Lyapunov exponents of linear cocycles

open access: yesJournal of Modern Dynamics, 2013
We study linear co-cycles in GL(d,R) (or C) depending on a parameter (in a Lipschitz or Holder fashion) and establish Holder regularity of the Lyapunov exponents for the shift dynamics on the base. We also obtain rates of convergence of the finite volume exponents to their infinite volume limits.
openaire   +2 more sources

Analytical solution of convective heat transfer of a quiescent fluid over a nonlinearly stretching surface using Homotopy Analysis Method

open access: yesResults in Physics, 2018
In this article, an analytical solution of the boundary layer fluid flow and heat transfer of a quiescent viscous fluid over a non-linearly stretching surface is presented.
M.A. Kazemi   +3 more
doaj   +1 more source

Growth of solutions to linear differential equations with entire coefficients

open access: yesElectronic Journal of Differential Equations, 2012
In this article, we study the growth of solutions of linear differential equations with some dominant entire coefficients. Especially, we obtain some results on the iterated p-lower order of these solutions, which extend previous results.
Hui Hu, Xiu-Min Zheng
doaj  

Growth and oscillation of differential polynomials generated by complex differential equations

open access: yesElectronic Journal of Differential Equations, 2013
The main purpose of this article is to study the controllability of solutions to the linear differential equation $$ f^{(k)}+A(z) f=0quad (kgeqslant 2) .
Zinelaabidine Latreuch   +1 more
doaj  

Tracking the chaotic behaviour of fractional-order Chua’s system by Mexican hat wavelet-based artificial neural network

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2019
In this paper, a process is devised systematically to scrutinize the scrolling chaotic behaviour of fractional-order Chua's system. The process is composed of fractional Laplace transformation, artificial neural network with Mexican hat wavelet as an ...
Najeeb A Khan   +3 more
doaj   +1 more source

Exponent of convergence of solutions to linear differential equations in the unit disc

open access: yesElectronic Journal of Differential Equations, 2015
In this article, we study the exponent of convergence of $f^{(i) }-\varphi $ where $f\not\equiv 0$ is a solution of linear differential equations with analytic and meromorphic coefficients in the unit disc and $\varphi $ is a small function of $f ...
Nacera Berrighi, Saada Hamouda
doaj  

The exponent of convergence of Poincaré series of combination groups

open access: yesTohoku Mathematical Journal, 1991
The author considers the free product of two discrete subgroups of the Möbius group of transformations \(GM(B^{n+1})\) with an amalgamated subgroup. For this general case he gives an estimate from below for the exponent of convergence in terms of the individual exponents.
openaire   +3 more sources

Growth of solutions of linear differential equations with analytic coefficients of [p,q]-order in the unit disc

open access: yesElectronic Journal of Differential Equations, 2014
In this article, we study the growth of solutions of homogeneous linear differential equation in which the coefficients are analytic functions of [p,q]-order in the unit disc. We obtain results about the (lower) [p,q]-order of the solutions, and the (
Hui Hu, Xiu-Min Zheng
doaj  

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