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undirected AGG

undirected

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undirected

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An undirected graph shows simple relations between objects, such as friendship between people. en.wikipedia.org

A cycle in an undirected graph is a connected subgraph in which each vertex is incident to exactly two edges, or is a loop. en.wikipedia.org

A directed graph is called weakly connected if replacing all of its directed edges with undirected edges produces a connected (undirected) graph. en.wikipedia.org

An undirected graph is perfect if, in every induced subgraph, the chromatic number equals the size of the largest clique. en.wikipedia.org

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