Boundary Value Problems
Volume 2007 (2007), Article ID 73176, 16 pages
Research Article

Extremal Solutions of Periodic Boundary Value Problems for First-Order Impulsive Integrodifferential Equations of Mixed-Type on Time Scales

Yongkun Li and Hongtao Zhang

Department of Mathematics, Yunnan University, Kunming, Yunnan 650091, China

Received 12 October 2006; Accepted 21 May 2007

Academic Editor: Ivan Kiguradze

Copyright © 2007 Yongkun Li and Hongtao Zhang. 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 consider the existence of minimal and maximal solutions of periodic boundary value problems for first-order impulsive integrodifferential equations of mixed-type on time scales by establishing a comparison result and using the monotone iterative technique.