Electronic Journal of Differential Equations, Vol. 2011 (2011), No. 35, pp. 1-14. Title: Mixed two-point boundary-value problems for impulsive differential equations Authors: Zhiqing Han (Dalian Univ. of Technology, Dalian, China) Suqin Wang (Dalian Univ. of Technology, Dalian, China) Abstract: In this article, we prove the existence of solutions to mixed two-point boundary-value problem for impulsive differential equations by variational methods, in both resonant and the non resonant cases. Submitted November 22, 2010. Published March 03, 2011. Math Subject Classifications: 34B15, 34B25. Key Words: Impulsive differential equations; mixed boundary value problem; variational methods; resonant and non-resonant.