Existence of solutions for a class of second-order impulsive Hamiltonian system with indefinite linear part

Qiongfen Zhang
2018 Journal of Nonlinear Science and its Applications  
We consider a class of second-order impulsive Hamiltonian system with indefinite linear part. By using saddle point theorem in critical point theory, an existence result is obtained, which extends and improves some existing results.
doi:10.22436/jnsa.011.03.05 fatcat:uv7n4otan5fjhghzuhgqnbkdga