Existence and concentration of solution for a fractional Hamiltonian systems with positive semi-definite matrix

César Torres, Ziheng Zhang, Amado Mendez

We study the existence of solutions for the following fractional Hamiltonian systems $$ \left\{ \begin{array}{ll} - _tD^α_{\infty}(_{-\infty}D^α_{t}u(t))-λL(t)u(t)+\nabla W(t,u(t))…