The nth order differential equation x + c (t )x + ƒ( t,x) = e(t),n>3 is
considered. Using the Leray-Schauder principle, it is shown that under certain
conditions on the functions involved, this equation possesses a periodic solution.
. (1998). ON THE PERIODIC SOLUTIONS OF A CLASS OF
nTH ORDER NONLINEAR DIFFERENTIAL
EQUATIONS *. (e31366). Journal of Sciences, Islamic Republic of Iran, 9(1), e31366
MLA
. "ON THE PERIODIC SOLUTIONS OF A CLASS OF
nTH ORDER NONLINEAR DIFFERENTIAL
EQUATIONS *" .e31366 , Journal of Sciences, Islamic Republic of Iran, 9, 1, 1998, e31366.
HARVARD
. (1998). 'ON THE PERIODIC SOLUTIONS OF A CLASS OF
nTH ORDER NONLINEAR DIFFERENTIAL
EQUATIONS *', Journal of Sciences, Islamic Republic of Iran, 9(1), e31366.
CHICAGO
, "ON THE PERIODIC SOLUTIONS OF A CLASS OF
nTH ORDER NONLINEAR DIFFERENTIAL
EQUATIONS *," Journal of Sciences, Islamic Republic of Iran, 9 1 (1998): e31366,
VANCOUVER
. ON THE PERIODIC SOLUTIONS OF A CLASS OF
nTH ORDER NONLINEAR DIFFERENTIAL
EQUATIONS *. J. Sci. I. R. I.. 1998;9(1):e31366.
Journal of Sciences, Islamic Republic of Iran