Oscillation of third-order nonlinear delay difference equations

2012-01-01
AKTAŞ, MUSTAFA FAHRİ
Tiryaki, Aydin
Zafer, Ağacık
Third-order nonlinear difference equations of the form Delta(c(n)Delta(d(n)Delta x(n))) p(n)Delta x(n+1) + q(n)f (x(n-sigma)) = n >= n(0) are considered. Here, {c(n)}, {d(n)}, {p(n)} and {q(n)} are sequences of positive real numbers for n(0) is an element of N, f is a continuous function such that f(u)/u >= K > 0 for u not equal 0. By means of a Riccati transformation technique we obtain some new oscillation criteria. Examples are given to illustrate the importance of the results.
TURKISH JOURNAL OF MATHEMATICS

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Citation Formats
M. F. AKTAŞ, A. Tiryaki, and A. Zafer, “Oscillation of third-order nonlinear delay difference equations,” TURKISH JOURNAL OF MATHEMATICS, pp. 422–436, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/57946.