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Graph Laplacian

For a simple undirected graph, degree matrix minus adjacency matrix encodes connectivity and diffusion.

L=D−AL=D-A

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  • Graph matchings

    A matching is a set of edges with no shared endpoints.

  • Network flow models

    Maximise flow through capacities; the min-cut theorem turns a bottleneck argument into a computable bound.

  • Vertex degrees

    Degree counts incident edge ends; directed graphs distinguish incoming and outgoing degrees.

  • Graph coloring

    Proper vertex coloring assigns different colors to adjacent vertices.

  • Graph connectivity

    Paths determine connected components; vertex and edge connectivity quantify robustness to removal.

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Graph Theory

Explore graph structures; paths, coloring and planarity; networks and spectral viewpoints. Concepts and connections are available independently of video coverage.

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