Several new oscillation criteria for two-dimensional nonlinear difference systems are established. Examples which dwell upon the importance of our results are also included.
Oscillations of two-dimensional nonlinear partial difference systems
โ Scribed by Shu Tang Liu; Guanrong Chen
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 449 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0898-1221
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โฆ Synopsis
Ymn, {amn} and {bran} are real sequences, m, n E No, and f, g: R --+ R are continuous with uf(u) > 0 and up(u) > 0 for all u โข 0. A solution ({xm~},{y,~,~}) of this system is oscillatory if both components are oscillatory. Some sufficient conditions are derived for all solutions of this system to be oscillatory.
๐ SIMILAR VOLUMES
and {bn}, n E N(no), are real sequences, and f, g : R --\* R are continuous with uf(u) > 0 and ug(u) > 0 for u ~ 0. A solution ({xn},{yn}) of the system is oscillatory if both components are oscillatory. The authors obtain sufficient conditions for all solutions of the system to be oscillatory. Some
Classification schemes for nonoscillatory solutions of a class of nonlinear two-dimensional nonlinear difference systems are given in terms of their asymptotic magnitudes, and necessary as well as sufficient conditions for the existence of these solutions are also provided.
## This paper is concerned with the nonlinear partial difference equation with continuous variables m A(x + a, y) + A(x, y + a) -A(x, y) + E hi(x, y, A(x -ai, y -~-i)) -~ 0, i=l where a, ai, ri are positive numbers, hi(x,y,u) E C(R + ร R + x R, R), uhi(x, y, u) > 0 for u ยข 0, hi is nondecreasing i
We examine the nonlinear response of a drop, rotating as a rigid body at fixed angular velocity, to two-dimensional finite-amplitude disturbances. With these restrictions, the liquid velocity becomes a superposition of the solid-body rotation and the gradient of a velocity potential. To find the dro