Oscillation of two-dimensional differenc
β
J.R. Graef; E. Thandapani
π
Article
π
1999
π
Elsevier Science
π
English
β 428 KB
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