`Mathematical Problems in EngineeringVolume 2009, Article ID 450862, 9 pageshttp://dx.doi.org/10.1155/2009/450862`
Research Article

## Higher-Order Approximate Periodic Solutions of a Nonlinear Oscillator with Discontinuity by Variational Approach

1Faculty of Aeronautics and Astronautics, Istanbul Technical University, Maslak 34469, Istanbul, Turkey
2Faculty of Science and Letters, Istanbul Technical University, Maslak 34469, Istanbul, Turkey

Received 16 October 2008; Revised 12 March 2009; Accepted 14 May 2009

Copyright © 2009 M. Orhan Kaya et al. 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.

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