Results 31 to 40 of about 165,894 (60)

Extending generalized Fibonacci sequences and their binet-type formula

open access: yesAdvances in Difference Equations, 2006
We study the extension problem of a given sequence defined by a finite order recurrence to a sequence defined by an infinite order recurrence with periodic coefficient sequence.
Saeki Osamu, Rachidi Mustapha
doaj  

Ume's u-distance and its relation with both (PS)-condition and coercivity

open access: yesElectronic Journal of Differential Equations, 2011
In this article, we study the connection between the u-distance and a new Palais-Smale condition of compactness. We compare this Palais-Smale condition with the coercivity.
Georgiana Goga
doaj  

Implementation of super H-antimagic total graph on establishing stream cipher

open access: yesIndonesian Journal of Combinatorics, 2019
This paper is aimed to study the use of super (a, d)-H antimagic total graph on generating encryption keys that can be used to establish a stream cipher. Methodology to achieve this goal was undertaken in three steps. First of all the existence of super (
Antonius Cahya Prihandoko   +2 more
doaj   +1 more source

Asymptotic behavior of a competitive system of linear fractional difference equations

open access: yesAdvances in Difference Equations, 2006
We investigate the global asymptotic behavior of solutions of the system of difference equations xn+1 = (a+xn)/(b+yn), yn+1 = (d+yn)/(e+xn), n = 0,1,..., where the parameters a, b, d, and e are positive numbers and the initial conditions x0 and y0 are ...
Nurkanović M, Kulenović MRS
doaj  

Dynamics in a diffusive phytoplankton–zooplankton system with time delay and harvesting

open access: yesAdvances in Difference Equations, 2019
The phytoplankton–zooplankton is fundamentally important to study plankton and protect marine environment. In this paper, we propose a diffusive phytoplankton–zooplankton model, in which we also consider time delay in zooplankton predation and harvesting
Yanfeng Li   +3 more
doaj   +1 more source

Gronwall-type integral inequalities with impulses on time scales

open access: yesAdvances in Difference Equations, 2011
In this article, some Gronwall-type integral inequalities with impulses on time scales are investigated. Our results extend some known dynamic inequalities on time scales, unify and extend some continuous inequalities and their corresponding discrete ...
Kang Ying   +4 more
doaj  

A nonlinear neutral periodic differential equation

open access: yesElectronic Journal of Differential Equations, 2010
In this article we consider the existence, uniqueness and positivity of a first order non-linear periodic differential equation. The main tool employed is the Krasnosel'skii's fixed point theorem for the sum of a completely continuous operator and a ...
Eric R. Kaufmann
doaj  

Existence and multiplicity of solutions for a Steklov problem involving the p(x)-Laplace operator

open access: yesElectronic Journal of Differential Equations, 2012
In this article we study the nonlinear Steklov boundary-value problem $$displaylines{ Delta_{p(x)} u=|u|^{p(x)-2}u quad hbox{in } Omega, cr |abla u|^{p(x)-2}frac{partial u}{partial u}=lambda f(x,u) quad hbox{on } partialOmega.
Mostafa Allaoui   +2 more
doaj  

Spectral mapping theorem for an evolution semigroup on a space of vector-valued almost-periodic functions

open access: yesElectronic Journal of Differential Equations, 2012
We give some characterizations for exponential stability of a periodic evolution family of bounded linear operators acting on a Banach space in terms of evolution semigroups acting on a special space of almost periodic functions.
Olivia Saierli
doaj  

THE FULL AVERAGING OF FUZZY DIFFERENTIAL INCLUSIONS [PDF]

open access: yesIranian Journal of Optimization, 2009
In this paper the substantiation of the method of full averaging for fuzzy differential inclusions is considered. These results generalize the results of [17, 20] for differential inclusions with Hukuhara derivative and of [18] for fuzzy differential ...
Natalia Skripnik
doaj  

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