Results 11 to 20 of about 3,579,879 (270)

p-adic difference-difference Lotka-Volterra equation and ultra-discrete limit [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
We study the difference-difference Lotka-Volterra equations in p-adic number space and its p-adic valuation version. We point out that the structure of the space given by taking the ultra-discrete limit is the same as that of the p-adic valuation space ...
Shigeki Matsutani
doaj   +4 more sources

Symmetries of the Hirota Difference Equation [PDF]

open access: yes, 2017
Continuous symmetries of the Hirota difference equation, commuting with shifts of independent variables, are derived by means of the dressing procedure. Action of these symmetries on the dependent variables of the equation is presented.
Pogrebkov, Andrei K.
core   +3 more sources

Entwined Paths, Difference Equations and the Dirac Equation [PDF]

open access: yes, 2002
Entwined space-time paths are bound pairs of trajectories which are traversed in opposite directions with respect to macroscopic time. In this paper we show that ensembles of entwined paths on a discrete space-time lattice are simply described by coupled
E. Nelson   +6 more
core   +2 more sources

Zero distribution of polynomials satisfying a differential-difference equation [PDF]

open access: yes, 2013
In this paper we investigate the asymptotic distribution of the zeros of polynomials $P_{n}(x)$ satisfying a first order differential-difference equation.
Dominici, Diego, Van Assche, Walter
core   +1 more source

On the discrete and continuous Miura Chain associated with the Sixth Painlevé Equation [PDF]

open access: yes, 1999
A Miura chain is a (closed) sequence of differential (or difference) equations that are related by Miura or B\"acklund transformations. We describe such a chain for the sixth Painlev\'e equation (\pvi), containing, apart from \pvi itself, a Schwarzian ...
Ablowitz   +25 more
core   +3 more sources

Some representations of the general solution to a difference equation of additive type

open access: yesAdvances in Difference Equations, 2019
The general solution to the difference equation xn+1=axnxn−1xn−2+bxn−1xn−2+cxn−2+dxnxn−1xn−2,n∈N0, $$x_{n+1}=\frac {ax_{n}x_{n-1}x_{n-2}+bx_{n-1}x_{n-2}+cx_{n-2}+d}{x_{n}x_{n-1}x_{n-2}},\quad n\in\mathbb{N}_{0}, $$ where a,b,c∈C $a, b, c\in\mathbb{C}$, d∈
Stevo Stević
doaj   +1 more source

On the Difference Equation xn+1=xnxn-k/(xn-k+1a+bxnxn-k)

open access: yesAbstract and Applied Analysis, 2012
We show that the difference equation xn+1=xnxn-k/xn-k+1(a+bxnxn-k),n∈ℕ0, where k∈ℕ, the parameters a, b and initial values x-i, i=0,k̅ are real numbers, can be solved in closed form considerably extending the results in the literature.
Stevo Stević   +3 more
doaj   +1 more source

Well-posedness of difference elliptic equation

open access: yesDiscrete Dynamics in Nature and Society, 1997
The exact with respect to step h∈(0,1] coercive inequality for solutions in Ch of difference elliptic equation is established.
Pavel E. Sobolevskii
doaj   +1 more source

Representation of solutions of a solvable nonlinear difference equation of second order

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
We present a representation of well-defined solutions to the following nonlinear second-order difference equation $$x_{n+1}=a+\frac{b}{x_n}+\frac{c}{x_nx_{n-1}},\quad n\in\mathbb{N}_0,$$ where parameters $a, b, c$, and initial values $x_{-1}$ and $x_0 ...
Stevo Stevic   +3 more
doaj   +1 more source

A high order $q$-difference equation for $q$-Hahn multiple orthogonal polynomials [PDF]

open access: yes, 2009
A high order linear $q$-difference equation with polynomial coefficients having $q$-Hahn multiple orthogonal polynomials as eigenfunctions is given. The order of the equation is related to the number of orthogonality conditions that these polynomials ...
Abramowitz M.   +10 more
core   +3 more sources

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