Lecture
This lecture covers the Laplacian matrix, its definition, properties, and examples associated with undirected graphs. It discusses time-varying consensus theorems, globally reachable nodes, and achieving average consensus in networked control systems. The lecture also explores the Laplacian matrix, consensus in continuous time, and balanced graphs. Properties of the Laplacian matrix, such as off-diagonal elements, zero row-sums, and eigenvalues, are explained. The association between digraphs and undirected graphs, Laplacian matrices, and adjacency matrices is detailed, along with examples and propositions related to graph connectivity.