Oscillatory and non-oscillatory behaviour of second-order neutral delay differential equations

摘要

The oscillatory and non-oscillatory behaviour of solutions of the neutral delay differential equation:[P(t)[x(t)+h(t)x(t−τ)]′]′+q(t)xα(t−σ)=0,′=ddt,where p,h,q∈C([t0,∞),R) and τ and σ are non-negative real numbers, are studied.