OSCILLATORY ANALYSIS FOR FIRST ORDER FUNCTIONAL NEUTRAL DELAY DIFFERENCE EQUATIONS
A. MURUGESAN *
Department of Mathematics, Government Arts College (Autonomous), Salem – 636 007, Tamil Nadu, India
R. SUGANTHI
Department of Mathematics, Government Arts College (Autonomous), Salem – 636 007, Tamil Nadu, India
*Author to whom correspondence should be addressed.
Abstract
In this paper, some new sufficient conditions for the oscillations of all solutions of first order nonlinear neutral delay difference equations of the form
∆[r(n)(a(n)x(n)+p0 x(n-τ) ) ]+q(n)f(x(n-σ) )=0, n≥n_0. (*)
Our derived results extending and/(or) strengthening some well - known results in the literature. Our main results are acquired by using some inequality techniques. Some suitable examples are also included to illustrative our results.
Keywords: Oscillation, neutral, delay difference equations, functional