TY - JOUR AU - Chen, Guanwei AU - Zhao, Xiaoming PY - 2014 DA - 2014/08/20 TI - Ground state homoclinic orbits of superquadratic damped vibration systems JO - Advances in Difference Equations SP - 230 VL - 2014 IS - 1 AB - In the case where nonlinearities are superquadratic at infinity, we study the existence of ground state homoclinic orbits for damped vibration systems without periodic conditions by using variational methods. Here the (local) Ambrosetti-Rabinowitz superquadratic condition is replaced by a general superquadratic condition. SN - 1687-1847 UR - https://doi.org/10.1186/1687-1847-2014-230 DO - 10.1186/1687-1847-2014-230 ID - Chen2014 ER -