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Mathematics, 02.07.2021 07:10 oliviaciscooc

A graph on the vertex set {1,2,...n} is often described by a matrix A of size n, where aij and aji are equal to the number of edges with ends i and j. What is the combinatorial interpretation of the entries of the matrix A^2?

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A graph on the vertex set {1,2,...n} is often described by a matrix A of size n, where aij and aji a...
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