Oscillation Properties of a Logistic Equation with Several Delays

For a scalar delay logistic equation m y hk t.. ˙y t. sy t. rk t. 1y , hk t. Ft , / K ks1 the oscillation properties are established, which are well known for a linear delay differential equation, such as comparison theorems, explicit nonoscillation and oscillation conditions, dependence of the solution sign on the initial function and the initial value.