ON THE EXISTENCE OF HARMONIC SOLUTION FOR THE n-DIMENSIONAL LIENARD EQUATION WITH DELAY
具有时滞的n维Lienard型方程的调和解

In this paper, the existence of harmonic solutions for the n-dimensional Lienardequation with delay p(t) is studied. Sufficient conditions toguarantee the existence of harmonic solutions for the equation are obtained. The main resultsin 1] are extended and improved.