OSCILLATION PROPERTIES OF SOLUTIONS OF SECOND ORDER NEUTRAL DIFFERENTIAL EQUATIONS WITH DEVIATING ARGUMENTS
Second order neutral differential equations with deviating arguments of the form dt y(t) + Ì : m v ( T i ( t ) ) • Q ( t ) f ( y ( a ( t ) ) ) = R ( t ) , t > t 0 i=\ are studied and sufficient conditions are derived for every solution to be oscillatory. Application to hyperbolic equations is also considered. AMS 1980 Classification: 34K15, 34C10, 35R10