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Questions about the branch of combinatorics called graph theory (not to be used for questions concerning the graph of a function). This tag can be further specialized via using it in combination with more specialized tags such as extremal-graph-theory, spectral-graph-theory, algebraic-graph-theory, topological-graph-theory, random-graphs, graph-colorings and several others.

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What is the n-th power of the adjacency matrix equal to?

the n-th power of the adjacency matrix represent the number of paths between two nodes (source ,destination) you can get by n transition here is an example
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