Results 51 to 60 of about 745 (118)

Some discrete Poincaré‐type inequalities

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 25, Issue 7, Page 479-488, 2001., 2001
Some discrete analogue of Poincaré‐type integral inequalities involving many functions of many independent variables are established. These in turn can serve as generators of further interesting discrete inequalities.
Wing-Sum Cheung
wiley   +1 more source

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  

A new result for entire functions and their shifts with two shared values

open access: yesOpen Mathematics
Let ff be a transcendental entire function of hyperorder strictly less than 1, and let cc be a nonzero finite complex number. We prove that if f(z)f\left(z) and f(z+c)f\left(z+c) partially share 0, 1 ignoring multiplicity (i.e., E¯(0,f(z))⊆E¯(0,f(z+c ...
Xu Aizhu, Lin Peiqiang, Chen Shengjiang
doaj   +1 more source

The role of prostitution on HIV transmission with memory: A modeling approach

open access: yesAlexandria Engineering Journal, 2020
HIV is a topic that has been greatly discussed and researched due to its impact on human population. Many campaigns have been put into place, and people have been made aware of the various effects of the disease.
Parvaiz Ahmad Naik   +2 more
doaj   +1 more source

Triple solutions for a Dirichlet boundary value problem involving a perturbed discrete p(k)-Laplacian operator

open access: yesOpen Mathematics, 2017
Triple solutions are obtained for a discrete problem involving a nonlinearly perturbed one-dimensional p(k)-Laplacian operator and satisfying Dirichlet boundary conditions.
Khaleghi Moghadam Mohsen   +1 more
doaj   +1 more source

SOLVING DIFFERENCE EQUATIONS IN SEQUENCES: UNIVERSALITY AND UNDECIDABILITY

open access: yesForum of Mathematics, Sigma, 2020
We study solutions of difference equations in the rings of sequences and, more generally, solutions of equations with a monoid action in the ring of sequences indexed by the monoid. This framework includes, for example, difference equations on grids (for
GLEB POGUDIN   +2 more
doaj   +1 more source

Almost automorphic solutions of discrete delayed neutral system

open access: yes, 2015
We study almost automorphic solutions of the discrete delayed neutral dynamic system% \[ x(t+1)=A(t)x(t)+\Delta Q(t,x(t-g(t)))+G(t,x(t),x(t-g(t))) \] by means of a fixed point theorem due to Krasnoselskii.
Adıvar, Murat, Koyuncuoglu, H. Can
core   +1 more source

Solvable subclasses of a class of nonlinear second-order difference equations

open access: yesAdvances in Nonlinear Analysis, 2016
We present some solvable subclasses of the class of nonlinear second-order difference equations of the form Axn+1 + Bxn+1xn + Cxnxn-1 + Gxn+1xn-1 + Dxn + Exn-1 + F = 0, n ∈ ℕ0, where the parameters A, B, C, D, E, F, G and the initial values x-1,x0 are ...
Stević Stevo
doaj   +1 more source

Oscillation Criteria of Singular Initial-Value Problem for Second Order Nonlinear Dynamic Equation on Time Scales

open access: yesNonautonomous Dynamical Systems, 2018
By using of generalized Opial’s type inequality on time scales, a new oscillation criterion is given for a singular initial-value problem of second-order dynamic equation on time scales. Some oscillatory results of its generalizations are also presented.
Negi Shekhar Singh   +2 more
doaj   +1 more source

Oscillation of nonlinear third order perturbed functional difference equations

open access: yesNonautonomous Dynamical Systems, 2019
This paper deals with oscillatory and asymptotic behavior of all solutions of perturbed nonlinear third order functional difference ...
Dinakar P.   +2 more
doaj   +1 more source

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