Static Output Feedback Stabilization: Necessary Conditions for Multiple Delay Controllers.

This note focuses on the static output feedback stabilization problem for a class of single-input--single-output systems when the control law includes multiple (distinct) delays. We are interested in giving necessary conditions for the existence of such stabilizing controllers, illustrative examples (second-order system, chain of integrators, or chain of oscillators) are presented, and, discussed. [ABSTRACT FROM AUTHOR]