2004 Conference on Diff. Eqns. and Appl. in Math. Biology, Nanaimo, 
BC, Canada.
Electronic Journal of Differential Equations,
Conference 12, 2005, pp. 159-169. 

Title: Approximate controllability of distributed systems 
       by distributed controllers

Authors: Benzion Shklyar (Holon Academic Inst. of Tech., Holon, Israel)
         Vladimir Marchenko (Univ. of Bialystok, Poland)
 
Abstract: 
Approximate controllability problem for a linear distributed control system
with possibly unbounded input operator, connected in a series to another
distributed system without control is investigated. An initial state of the
second distributed system is considered as a control parameter.
Applications to control partial equations governed by hyperbolic controller,
and to control delay systems governed by hereditary controller are considered.

Published April 20, 2005.
Math Subject Classifications: 93B05.
Key Words: Approximate controllability; abstract boundary control problems;
      evolution equations; linear differential control systems with delays;
      partial differential control equations.