Results 21 to 30 of about 442,508 (305)

Parametrical identification of the special equation Ricatti on the basis of stochastic difference equations

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2008
Construction stochastic difference equations connecting results of supervision of instant values of dynamic processes described by special equation Ricatti, is considered.
A. S. Ovsienko   +1 more
doaj   +1 more source

Existence and Stability Analysis for Fractional Impulsive Caputo Difference-Sum Equations with Periodic Boundary Condition [PDF]

open access: yes, 2020
In this paper, by using the Banach contraction principle and the Schauder’s fixed point theorem, we investigate existence results for a fractional impulsive sum-difference equations with periodic boundary conditions.
Rujira Ouncharoen   +2 more
core   +1 more source

Nontrivial Solutions for a System of Fractional q-Difference Equations Involving q-Integral Boundary Conditions [PDF]

open access: yes, 2020
In this paper, we study the existence of nontrivial solutions for a system of fractional q-difference equations involving q-integral boundary conditions, and we use the topological degree to establish our main results by considering the first eigenvalue ...
Jiafa Xu   +3 more
core   +1 more source

Transformations of Difference Equations II

open access: yesAdvances in Difference Equations, 2010
This is an extension of the work done by Currie and Love (2010) where we studied the effect of applying two Crum-type transformations to a weighted second-order difference equation with non-eigenparameter-dependent boundary conditions at the end points.
Sonja Currie, Anne D. Love
doaj   +2 more sources

Dynamics of General Class of Difference Equations and Population Model with Two Age Classes [PDF]

open access: yes, 2020
In this paper, we study the qualitative behavior of solutions for a general class of difference equations. The criteria of local and global stability, boundedness and periodicity character (with period 2 k ) of the solution are established ...
Dimplekumar Chalishajar   +3 more
core   +1 more source

Difference–Differential Equations [PDF]

open access: yesNature, 1948
THE general linear homogeneous difference–differential equation with constant coefficients is where 0 ⩽ μ ⩽m, 0⩽ν ⩽ n, y(ν)(t) is the ν-th derivative of the unknown function y (t) and 0 = b0 bm, if amn≠ 0. (2) Was first given by Hilb8, but under conditions which would exclude most of the applications.
openaire   +1 more source

Solutions for Several Quadratic Trinomial Difference Equations and Partial Differential Difference Equations in C2

open access: yesAxioms, 2021
This article is to investigate the existence of entire solutions of several quadratic trinomial difference equations f(z+c)2+2αf(z)f(z+c)+f(z)2=eg(z), and the partial differential difference equations f(z+c)2+2αf(z+c)∂f(z)∂z1+∂f(z)∂z12=eg(z),f(z+c)2+2αf ...
Hong Li, Hongyan Xu
doaj   +1 more source

Fractional Order Difference Equations

open access: yesInternational Journal of Differential Equations, 2012
A difference equation is a relation between the differences of a function at one or more general values of the independent variable. These equations usually describe the evolution of certain phenomena over the course of time. The present paper deals with
J. Jagan Mohan, G. V. S. R. Deekshitulu
doaj   +1 more source

Sixteen practically solvable systems of difference equations [PDF]

open access: yes, 2020
[[abstract]]Closed-form formulas for general solutions to sixteen hyperbolic-cotangent-type systems of difference equations of interest are obtained, showing their practical solvability and completely solving a solvability problem for some concrete ...
Stevi, Stevo;Stevic, Stevo
core  

Dirichlet and Neumann Boundary Value Problems for Dunkl Polyharmonic Equations [PDF]

open access: yes, 2023
Dunkl operators are a family of commuting differential–difference operators associated with a finite reflection group. These operators play a key role in the area of harmonic analysis and theory of spherical functions.
Valery Karachik, Hongfen Yuan
core   +1 more source

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