Oscillation of solutions of neutral differential equations with a superlinear neutral term

摘要

The oscillatory behavior of solutions of the neutral differential equations with a superlinear neutral term is [x(t)-px~α(t-τ)]' + q(t) Π_(j=1)~m |x (t-σj)|βj sign [x(t-σ1)] = 0, t ≥ t0, studied in the case when α>1. Two almost “sharp” oscillatory and non-oscillatory criteria are obtained.