Shahid Bahonar University of Kerman Journal of Mahani Mathematical Research 2251-7952 1 2 2012 03 11 PERIODIC SOLUTIONS IN CERTAIN CLASS OF 3- DIMENSION DISCONTINUOUS AUTONOMOUS SYSTEMS 119 136 512 10.22103/jmmrc.2012.512 EN M. Karimi Amaleh HORMOZGAN UNIVERSITY Zahra Afsharnezhad FERDOWSI UNIVERSITY OF MASHHAD Journal Article 2012 04 29 In the present paper the linear oscillator in R3 with z =constant<br />has been considered. The aim is to determine the necessary conditions for<br />the persistence of periodic solutions under discontinuous perturbations. A new<br />approach based on a computational method has been used. At the end we<br />apply our method on an example. Perturbation periodic solution Discontinuous system https://jmmrc.uk.ac.ir/article_512_06fc92f50c6c3a4466dfc83876ec431f.pdf