Results 81 to 90 of about 546 (157)

On a three-dimensional system of difference equations with variable coefficients [PDF]

open access: yes, 2021
Consider the three-dimensional system of difference equations xn+1 = ∏k j=0 zn−3j ∏k j=1 xn−(3j−1) ( an + bn ∏k j=0 zn−3j ), yn+1 = ∏k j=0 xn−3j ∏k j=1 yn−(3j−1) ( cn + dn ∏k j=0 xn−3j ), zn+1 = ∏k j=0 yn−3j ∏k j=1 zn−(3j−1) ( en +
Nouressadat, Touafek   +3 more
core  

Results on the deficiencies of some differential-difference polynomials of meromorphic functions

open access: yesOpen Mathematics, 2016
In this paper, we study the relation between the deficiencies concerning a meromorphic function f(z), its derivative f′(z) and differential-difference monomials f(z)mf(z+c)f′(z), f(z+c)nf′(z), f(z)mf(z+c).
Zheng Xiu-Min, Xu Hong-Yan
doaj   +1 more source

A class of nonlinear perturbed difference equations

open access: yes, 2018
In this paper we study a class of nonlinear singularly perturbed difference equations with boundary value conditions. Provide that the singular perturbation parameter is small enough, we give sufficient conditions to guarantee the existence and ...
Tahia Zerizer
semanticscholar   +1 more source

Inner products involving differences: The Meixner-Sobolev polynomials [PDF]

open access: yes, 2000
31 pages, no figures.-- MSC2000 codes: 33C45, 33D45, 39A10, 39A70, 42C05.MR#: MR1752153 (2000m:33006)Zbl#: Zbl 0948.33004In this paper, polynomials which are orthogonal with respect to the inner product $$\langle p,q\rangle_S= \sum infty_{s=0} p(s)q(s) {\
Marcellán, Francisco   +3 more
core   +1 more source

The existence of solutions to certain type of nonlinear difference-differential equations

open access: yesOpen Mathematics, 2018
In this paper we study the entire solutions to a certain type of difference-differential equations. We also give an affirmative answer to the conjecture of Zhang et al.
Lü Weiran   +3 more
doaj   +1 more source

On the solutions of some nonlinear systems of difference equations

open access: yes, 2013
In this paper, we deal with the existence of solutions and the periodicity character of the following systems of rational difference equations with order three: xn+1=xnyn−2yn−1(±1±xnyn−2),yn+1=ynxn−2xn−1(±1±ynxn−2), where the initial conditions x−2, x ...
E. Elsayed, H. El-Metwally
semanticscholar   +1 more source

Monte Carlo Random Walk Simulations Based on Distributed Order Differential Equations with Applications to Cell Biology [PDF]

open access: yes, 2006
Mathematics Subject Classification: 65C05, 60G50, 39A10, 92C37In this paper the multi-dimensional Monte-Carlo random walk simulation models governed by distributed fractional order differential equations (DODEs) and multi-term fractional order ...
Steinberg, Stanly   +2 more
core  

Asymptotically polynomial solutions of difference equations

open access: yes, 2013
Asymptotic properties of solutions of a difference equation of the form Δmxn=anf(n,xσ(n))+bn are studied. We present sufficient conditions under which, for any polynomial φ(n) of degree at most m−1 and for any real s≤0, there exists a solution x of the
Janusz Migda
semanticscholar   +1 more source

New oscillation results for second-order neutral delay dynamic equations

open access: yesAdvances in Differential Equations, 2012
This paper is concerned with oscillatory behavior of a certain class of second-order neutral delay dynamic equations (r(t)[x(t)+p(t)x(τ(t))]Δ)Δ+q(t)x(δ(t))=0, on a time scale T with supT=∞, where 0≤p(t ...
Cheng-Hui Zhang   +3 more
semanticscholar   +1 more source

A CA Hybrid of the Slow-to-Start and the Optimal Velocity Models and its Flow-Density Relation?

open access: yes, 2015
. The s2s-OVCA is a cellular automaton (CA) hybrid of the optimal velocity (OV) model and the slow-to-start (s2s) model, which is introduced in the framework of the ultradiscretization method.
Tetsu Yajima   +3 more
core   +1 more source

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