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Abstract and Applied Analysis
Volume 2013, Article ID 138623, 9 pages
Research Article

Heteroclinic Solutions for Nonautonomous EFK Equations

1School of Mathematics and Systems Science, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2School of Mathematical Sciences, Peking University, Beijing 100875, China

Received 30 August 2012; Accepted 12 February 2013

Academic Editor: Nikolaos Papageorgiou

Copyright © 2013 Y. L. Yeun. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We explore the nonautonomous fourth-order differential equation which has important applications in materials science. By variational approach, we find heteroclinic solutions of the equation. The conditions on the potential function are mild enough to include a broad class of equations. We also consider a separate case where is periodic in .