Add to ORKGAbstract. We investigate the number of the weak periodic solu-tions for the bifurcation problem of the Hamiltonian system with the superquadratic nonlinearity. We get one theorem which shows the existence of at least two weak periodic solutions for this system. We obtain this result by using variational method, critical point theor
We prove the existence of an arbitrarily large number of subharmonic solutions for a class of weakly...
AbstractBy means of an extension of relative category we prove by a “linking-type” theorem the exist...
AbstractWe consider the periodic solutions of the second order Hamiltonian system-x¨-λx=h(t)V′(x)wit...
Abstract. We investigate the number of the weak periodic solu-tions for the bifurcation problem of t...
We show the existence of four -periodic solutions of the nonlinear Hamiltonian system with some co...
AbstractIn this paper, we consider the superquadratic second order Hamiltonian systemu″(t)+A(t)u(t)+...
AbstractPeriodic solutions and infinitely distinct subharmonic solutions are obtained for a class of...
Under an appropriate oscillating behavior of the nonlinear term, the existence of infinitely many pe...
Abstract We investigate the nontrivial solutions for a class of the systems of the superquadratic no...
The existence of at least one nontrivial periodic solution for a class of second order Hamiltonian s...
AbstractSome solvability conditions of periodic solutions and subharmonic solutions are obtained for...
Some existence conditions of periodic solutions are obtained for a class of nonautono mous subquadr...
Fei We study the existence of periodic solutions for some Hamiltonian systems z ̇ = JHz(t, z) under...
Some existence conditions of periodic solutions are obtained for a class of nonautono-mous subquadra...
AbstractWe consider the periodic solutions of the second order Hamiltonian system-x¨-λx=h(t)V′(x)wit...
We prove the existence of an arbitrarily large number of subharmonic solutions for a class of weakly...
AbstractBy means of an extension of relative category we prove by a “linking-type” theorem the exist...
AbstractWe consider the periodic solutions of the second order Hamiltonian system-x¨-λx=h(t)V′(x)wit...
Abstract. We investigate the number of the weak periodic solu-tions for the bifurcation problem of t...
We show the existence of four -periodic solutions of the nonlinear Hamiltonian system with some co...
AbstractIn this paper, we consider the superquadratic second order Hamiltonian systemu″(t)+A(t)u(t)+...
AbstractPeriodic solutions and infinitely distinct subharmonic solutions are obtained for a class of...
Under an appropriate oscillating behavior of the nonlinear term, the existence of infinitely many pe...
Abstract We investigate the nontrivial solutions for a class of the systems of the superquadratic no...
The existence of at least one nontrivial periodic solution for a class of second order Hamiltonian s...
AbstractSome solvability conditions of periodic solutions and subharmonic solutions are obtained for...
Some existence conditions of periodic solutions are obtained for a class of nonautono mous subquadr...
Fei We study the existence of periodic solutions for some Hamiltonian systems z ̇ = JHz(t, z) under...
Some existence conditions of periodic solutions are obtained for a class of nonautono-mous subquadra...
AbstractWe consider the periodic solutions of the second order Hamiltonian system-x¨-λx=h(t)V′(x)wit...
We prove the existence of an arbitrarily large number of subharmonic solutions for a class of weakly...
AbstractBy means of an extension of relative category we prove by a “linking-type” theorem the exist...
AbstractWe consider the periodic solutions of the second order Hamiltonian system-x¨-λx=h(t)V′(x)wit...