Communications in Computer and Information Science.
Springer Verlag.
Vol. 564.
2015.
P. 393-403
We study a continuous-time linear control system described by a linear differential equation on the real line or on the half-line. We show that the family of compactly supported solutions of this system is everywhere dense in the space of all solutions. This result is generalized to discrete-time systems. © Pleiades Publishing, Ltd., 2015.