Results 1 to 10 of about 8,329 (95)

Oscillation theory of q-difference equation

open access: yesJournal of Computational Mathematica, 2021
In this research article, the authors present the oscillation theory of the q-difference equation K(t)y(qt)+k(t/q)y(t/q)= r(t)y(t) where r(t) = k(t)+k(t/q)-q(t) In particular we prove that this q-difference equation is oscillatory or non-oscillatory for different conditions.
null Soundarya   +2 more
openaire   +2 more sources

Rhythm motion control in bio‐inspired fishtail based on central pattern generator

open access: yesIET Cyber-systems and Robotics, 2021
The elastic oscillation structure based on central pattern generators (CPGs), which can produce rhythmic motions, is discussed. First, Hopf CPG, the typical CPG model, being a signal generator for the elastic oscillation structure, is analysed via the ...
Song Chen   +3 more
doaj   +1 more source

Multiphysics Simulator for the IPMC Actuator: Mathematical Model, Finite Difference Scheme, Fast Numerical Algorithm, and Verification

open access: yesMicromachines, 2020
The article is devoted to the development and creation of a multiphysics simulator that can, on the one hand, simulate the most significant physical processes in the IPMC actuator, and on the other hand, unlike commercial products such as COMSOL, can use
Anton P. Broyko   +5 more
doaj   +1 more source

Oscillation results for certain fractional difference equations

open access: yesJournal of Hebei University of Science and Technology, 2017
Fractional calculus is a theory that studies the properties and application of arbitrary order differentiation and integration. It can describe the physical properties of some systems more accurately, and better adapt to changes in the system, playing an
Zhiyun WANG, Shujuan LIU, Qiaoluan LI
doaj   +1 more source

QUALITATIVE THEORY OF PARTIAL DIFFERENCE EQUATIONS (I): OSCILLATION OF NONLINEAR PARTIAL DIFFERENCE EQUATIONS

open access: yesTamkang Journal of Mathematics, 1994
This paper is concerned with a class of nonlinear partial difference equations with delay. By means of an averaging technique, and several oscillation criteria for ordinary recurrence relations, we are able to establish several oscillation criteria for the partial difference equations.
Cheng, Sui Sun, Zhang, Bing-Gen
openaire   +3 more sources

OSCILLATION THEORY FOR A CLASS OF SECOND ORDER QUASILINEAR DIFFERENCE EQUATIONS

open access: yesTamkang Journal of Mathematics, 1997
In this paper the authors establish necessary and sufficient conditons for the second order quasilinear difference equation  \[\Delta (\alpha_n(\Delta y_n)^{\alpha*})+f(n, y_{n+1})=0\qquad\qquad n\in N(n_0)\qquad\qquad \text{(E)}\] to have various types of nonoscillatory solutions. In addition, in the case when (E) is either strongly superlinear
Thandapani, E., Arul, R.
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Delay-difference equations with periodic coefficients: sharp results in oscillation theory [PDF]

open access: yesMathematical Inequalities & Applications, 1998
The author considers the delay-difference equation \[ x(n+1)-x(n)+b(n)x(n-k)=0,\quad k\in N,\;b(n)\geq 0,\;n\geq n_0. \tag{1} \] By using the discrete version of Sturmian comparison method, the author establishes the following: 1. statements (a) and (b) are equivalent where (a) there exists at least one nonoscillatory solution of (1), (b) there is no ...
openaire   +1 more source

QUALITATIVE THEORY OF PARTIAL DIFFERENCE EQUATIONS (IV): FORCED OSCILLATIONS OF HYPERBOLIC TYPE NONLINEAR PARTIAL DIFFERENCE EQUATIONS

open access: yesTamkang Journal of Mathematics, 1995
Nonlinear hyperbolic type partial difference equations with a forcing term are studied in this paper. By means of two averaging techniques, the problems of oscillation of characteristic initial value problem and of initial boundary value problem are reduced to that of forced and/ or unforced recurrence relations in one variable.
Cheng, Sui Sun   +2 more
openaire   +3 more sources

QUALITATIVE THEORY OF PARTIAL DIFFERENCE EQUATIONS (III): FORCED OSCILLATIONS OF PARABOLIC TYPE PARTIAL DIFFERENCE EQUATIONS

open access: yesTamkang Journal of Mathematics, 1995
Parabolic type partial difference equations with a forcing term is stud- ied in this paper. By means of three averaging techniques, the problem of oscillation of these equations is reduced to that of recurrence relations in one variable.
SUI SUN CHENG   +2 more
openaire   +2 more sources

Relative oscillation theory for matrix Sturm-Liouville difference equations extended [PDF]

open access: yesAdvances in Difference Equations, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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