Electronic Journal of Differential Equations,
Vol. 2013 (2013), No. 97, pp. 1-13.

Title: Existence of infinitely many anti-periodic solutions for second-order
       impulsive differential inclusions
        
Authors: Shapour Heidarkhani (Razi Univ., Kermanshah, Iran)
         Ghasem A. Afrouzi (Univ. of Mazandaran, Babolsar, Iran)
         Armin Hadjian     (Univ. of Mazandaran, Babolsar, Iran)
         Johnny Henderson  (Baylor Univ., Waco, TX, USA)

Abstract:
 In this article, we establish the existence of infinitely many
 anti-periodic solutions for a second-order impulsive differential
 inclusion with a perturbed nonlinearity and two parameters.
 The technical approach is mainly based on a critical point theorem
 for non-smooth functionals.

Submitted January 29, 2013. Published April 16, 2013.
Math Subject Classifications: 58E05, 49J52, 34A60.
Key Words: Differential inclusions; impulsive; anti-periodic solution; 
           non-smooth critical point theory.