Necessary and sufficient conditions of oscillation in first order neutral delay differential equations
Summary: We are concerned with oscillation of the first order neutral delay differential equation \([x(t) - p x(t - \tau)]' + q x(t - \sigma) = 0\) with constant coefficients, and we obtain some necessary and sufficient conditions of oscillation for all the solutions in respective cases \(0 < p < 1\) and \(p > 1\).
scientific article; zbMATH DE number 7022752
scientific article