Frequency-Domain Analysis and Design of Distributed Control Systems; Contents; Preface; Glossary of Symbols; 1 Introduction; 1.1 Network-Based Distributed Control System; 1.2 Graph Theory and Interconnection Topology; 1.2.1 Basic Definitions; 1.2.2 Graph Operations; 1.2.3 Algebraic Graph Theory; 1.3 Distributed Control Systems; 1.3.1 End-to-End Congestion Control Systems; 1.3.2 Consensus-Based Formation Control; 1.4 Notes and References; 1.4.1 Graph Theory and Distributed Control Systems; 1.4.2 Delay in Control and Control by Delay; References; 2 Symmetry, Stability and Scalability.