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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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Matching in bipartite graphs

Hi guys, I'm new here. Well, actually I'm studying graph theory and the follow question is driving me crazy. Any hint in any direction would be appreciated. Here is the question: Let $G = G[X, Y]$ a …
Rodrigo Ribeiro's user avatar