**Seshadev Padhi**

## On the Asymptotic Behaviour of Solutions of Third
Order Delay Differential Equations

**Abstract:**

Sufficient conditions in terms of coefficient functions have been obtained so
that all nonoscillatory solutions along with their first and second derivatives
of the third order delay differential equation $$y'''(t)+a(t)y''(t)+b(t)y'(t)+c(t)y(g(t))=0$$
tend to zero as $t\rightarrow\infty$.

**Keywords:**

Oscillation, nonoscillation, disconjugate, asymptotic behaviour, delay
differential equations.

**MSC 2000:** 34C10, 34C11