The Turán graph, denoted as \( T(n, r) \), is a specific type of graph used in extremal graph theory, which studies the conditions under which graphs contain certain subgraphs. The Turán graph is designed to be the largest \( K_{r+1} \)-free graph (a graph that does not contain a complete subgraph of \( r+1 \) vertices) with \( n \) vertices.
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