摘要
In this paper we study asyrnptotic behaviour of solutions of second ordernonlinear delay differential equations on cylindrical surface. We give d necessaryand sufficient condition for the oscillations, and we give some sufficient conditionsfor the forced oscillations.
In this paper we study asyrnptotic behaviour of solutions of second ordernonlinear delay differential equations on cylindrical surface. We give d necessaryand sufficient condition for the oscillations, and we give some sufficient conditionsfor the forced oscillations.
