AbstractWe consider the periodic solutions of the second order Hamiltonian system-x¨-λx=h(t)V′(x)with V being positive and superquadratic at infinity, h being C1, 2π-periodic, sign changing and all zeros being simple. Some existence and multiplicity results of periodic solutions are given
AbstractWe study the existence of homoclinic orbits for the second order Hamiltonian system q¨+Vq(t,...
AbstractWe shall be concerned with the existence of homoclinic solutions for the second order Hamilt...
AbstractIn this paper, some existence theorems of periodic solutions of a class of the nonautonomous...
AbstractWe consider the periodic solutions of the second order Hamiltonian system-x¨-λx=h(t)V′(x)wit...
AbstractThe purpose of this paper is two-fold. Firstly, we will give some parabolic-like conditions ...
AbstractWe study the existence of 2π-periodic solutions of the second order Hamiltonian systems −x¨−...
AbstractAn existence theorem is obtained for periodic solutions of nonautonomous second order Hamilt...
The first order Hamiltonian system is considered with T-periodic Hamiltonian that is sub-quadratic a...
AbstractWe prove the existence of nontrivial critical points for a class of superquadratic nonautono...
AbstractA new result for existence of homoclinic orbits is obtained for the second-order Hamiltonian...
Three periodic solutions for perturbed second order Hamiltonian systems \begin{abstract} In this pa...
AbstractWe consider two classes of the second-order Hamiltonian systems with symmetry. If the system...
AbstractPeriodic solutions and infinitely distinct subharmonic solutions are obtained for a class of...
AbstractSome solvability conditions of periodic and subharmonic solutions are obtained for a class o...
AbstractWe prove the existence and multiplicity of positive T-periodic solution(s) for T-periodic eq...
AbstractWe study the existence of homoclinic orbits for the second order Hamiltonian system q¨+Vq(t,...
AbstractWe shall be concerned with the existence of homoclinic solutions for the second order Hamilt...
AbstractIn this paper, some existence theorems of periodic solutions of a class of the nonautonomous...
AbstractWe consider the periodic solutions of the second order Hamiltonian system-x¨-λx=h(t)V′(x)wit...
AbstractThe purpose of this paper is two-fold. Firstly, we will give some parabolic-like conditions ...
AbstractWe study the existence of 2π-periodic solutions of the second order Hamiltonian systems −x¨−...
AbstractAn existence theorem is obtained for periodic solutions of nonautonomous second order Hamilt...
The first order Hamiltonian system is considered with T-periodic Hamiltonian that is sub-quadratic a...
AbstractWe prove the existence of nontrivial critical points for a class of superquadratic nonautono...
AbstractA new result for existence of homoclinic orbits is obtained for the second-order Hamiltonian...
Three periodic solutions for perturbed second order Hamiltonian systems \begin{abstract} In this pa...
AbstractWe consider two classes of the second-order Hamiltonian systems with symmetry. If the system...
AbstractPeriodic solutions and infinitely distinct subharmonic solutions are obtained for a class of...
AbstractSome solvability conditions of periodic and subharmonic solutions are obtained for a class o...
AbstractWe prove the existence and multiplicity of positive T-periodic solution(s) for T-periodic eq...
AbstractWe study the existence of homoclinic orbits for the second order Hamiltonian system q¨+Vq(t,...
AbstractWe shall be concerned with the existence of homoclinic solutions for the second order Hamilt...
AbstractIn this paper, some existence theorems of periodic solutions of a class of the nonautonomous...
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