摘要
For periodic distributed systems the author reduces the "entinels" problem to a problem of controllability type and uses suitable adaptations of of HUM (Hilbert Uniqueness Method) to gives olutions to the original "sentinels" problem.
For periodic distributed systems the author reduces the 'entinels' problem to a problem of controllability type and uses suitable adaptations of of HUM (Hilbert Uniqueness Method) to gives olutions to the original 'sentinels' problem.
