Electronic Journal of Differential Equations,
Vol. 2014 (2014), No. 55, pp. 1-13.

Title: Emden-Fowler problem for discrete operators with variable exponent

Author: Maria Malin (Univ. of Craiova, Romania)

Abstract:
 In this article, we prove the existence of homoclinic solutions for
 a p(.)-Laplacian difference equation on the set of integers,
 involving a coercive weight function and a reaction term satisfying
 the Ambrosetti-Rabinowitz condition. The proof of the main result is
 obtained by using critical point theory combined with adequate variational
 techniques, which are mainly based on the mountain pass theorem.


Submitted December 8, 2013. Published February 25, 2014.
Math Subject Classifications: 39A14, 44A55, 34C375.
Key Words: Difference equations; discrete p(.)-Laplacian;
           homoclinic solution, mountain pass lemma.