Page 1 Next

Displaying 1 – 20 of 45

Showing per page

Second order nonlinear differential equations with linear impulse and periodic boundary conditions

Aydin Huseynov (2011)

Applications of Mathematics

In this study, we establish existence and uniqueness theorems for solutions of second order nonlinear differential equations on a finite interval subject to linear impulse conditions and periodic boundary conditions. The results obtained yield periodic solutions of the corresponding periodic impulsive nonlinear differential equation on the whole real axis.

Solvability of a forced autonomous Duffing's equation with periodic boundary conditions in the presence of damping

Chaitan P. Gupta (1993)

Applications of Mathematics

Let g : 𝐑 𝐑 be a continuous function, e : [ 0 , 1 ] 𝐑 a function in L 2 [ 0 , 1 ] and let c 𝐑 , c 0 be given. It is proved that Duffing’s equation u ' ' + c u ' + g ( u ) = e ( x ) , 0 < x < 1 , u ( 0 ) = u ( 1 ) , u ' ( 0 ) = u ' ( 1 ) in the presence of the damping term has at least one solution provided there exists an 𝐑 > 0 such that g ( u ) u 0 for | u | 𝐑 and 0 1 e ( x ) d x = 0 . It is further proved that if g is strictly increasing on 𝐑 with lim u - g ( u ) = - , lim u g ( u ) = and it Lipschitz continuous with Lipschitz constant α < 4 π 2 + c 2 , then Duffing’s equation given above has exactly one solution for every e L 2 [ 0 , 1 ] .

Currently displaying 1 – 20 of 45

Page 1 Next