Advances in Difference Equations
Volume 2010 (2010), Article ID 179750, 25 pages
Research Article

On Type of Periodicity and Ergodicity to a Class of Fractional Order Differential Equations

1Department of Mathematical Sciences, Florida Institute of Technology, Melbourne, FL 32901, USA
2Mathematics and Statistics Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
3Departamento de Matemática, Universidade Federal de Pernambuco, Recife-PE, CEP. 50540-740, Brazil

Received 22 October 2009; Accepted 27 January 2010

Academic Editor: Mouffak Benchohra

Copyright © 2010 Ravi P. Agarwal 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.


We study several types of periodicity to a class of fractional order differential equations.