Journal of Applied Mathematics
Volume 2011 (2011), Article ID 587890, 10 pages
Research Article

Approximate Boundary Controllability for Semilinear Delay Differential Equations

Department of Mathematics and Computer Science, University of Central Missouri, Warrensburg, MO 64093, USA

Received 22 March 2011; Accepted 3 July 2011

Academic Editor: Alexandre Carvalho

Copyright © 2011 Lianwen Wang. 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.


This paper considers the approximate controllability for a class of semilinear delay control systems described by a semigroup formulation with boundary control. Sufficient conditions for approximate controllability are established provided the approximate controllability of corresponding linear systems.