AL-Rafidain Journal of Computer Sciences and Mathematics

Abstract

    In this paper, we study the conditions under which the zero solution is stable in the semi- liner case for certain third order differential equation of the form :
          
Where
   ,   s = 1,2,3  ,       ,         
               ,        

    The characteristic equation of the above differential equation has complex roots of the form :
 and the other root has the following                 ,       .        property