
First order neutral delay differential equations with single delays as well as with several delays are studied. Some necessary and sufficient conditions for oscillation are proved by using the existence of real roots of the relevant characteristic equation. Some sufficient conditions for oscillation are obtained. These conditions can be verified when the parameters are given.
Oscillation theory of functional-differential equations, first order neutral delay differential equations with single delays, Applied Mathematics, oscillation, several delays, Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations, Neutral functional-differential equations, Analysis
Oscillation theory of functional-differential equations, first order neutral delay differential equations with single delays, Applied Mathematics, oscillation, several delays, Oscillation theory, zeros, disconjugacy and comparison theory for ordinary differential equations, Neutral functional-differential equations, Analysis
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