M. KARIMI AMALEH - HORMOZGAN UNIVERSITY
Z. AFSHARNEZHAD - FERDOWSI UNIVERSITY OF MASHHAD
V. AMIRZADEH - DEPARTMENT OF STATISTICS, SHAHID BAHONAR UNIVERSITY OF KERMAN, KERMAN, I.R.IRAN.

In the present paper the linear oscillator in R3 with z =constanthas been considered. The aim is to determine the necessary conditions forthe persistence of periodic solutions under discontinuous perturbations. A newapproach based on a computational method has been used. At the end weapply our method on an example.

Perturbation, periodic solution, Discontinuous system