Controllability of Network Systems

Abstract

Several natural and man-made systems are often represented as complex networks, since their dynamic behavior depends to a large extent upon the properties of their interconnection structure. Electrical power grids, mass transportation systems, and cellular networks are instances of modern technological networks, while metabolic and brain networks are biological examples. The ability to control and reconfigure complex networks via external controls is fundamental to guarantee reliable and efficient network functionalities. In this note, we review recent advances and methods that characterize fundamental controllability properties and limitations of network systems.