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 - tau)]'] + q(t)x(alpha)(t - sigma) = 0, .' = d/dt, where p, h, q is an element of C([t(0), infinity), R) and tau and sigma are non-negative'real numbers, are studied. (C) 2002 Elsevier Science Inc. All rights reserved. [References: 9]