الفهرس | Only 14 pages are availabe for public view |
Abstract This thesis consistes of three chapters : Chapter I : * concerning the general system. * concerning the generalsystem and a condition for the stability of the periodic solution. * Another condition for the stability of the periodic solution the same system in section 2. Chapter II : Stability condition for the isolated periodical solution of the perturbed system. Chapter III : Condition for asymptotic stability of the isolated periodic solution. |