New exact values of the maximum size of graphs free of topological complete subgraphs (Q870962)

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scientific article; zbMATH DE number 5134172
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New exact values of the maximum size of graphs free of topological complete subgraphs
scientific article; zbMATH DE number 5134172

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    New exact values of the maximum size of graphs free of topological complete subgraphs (English)
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    15 March 2007
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    A generalization of the famous extremal problem of Turán asks for determining the number ex\((n,p)\), the maximum number of edges of a graph of order \(n\) not containing a graph homeomorphic to the complete graph on \(p\) vertices. In this paper the exact values of ex\((n,p)\) are given for \((7n+7)/12\leq p<(12n+1)/3\), provided that \(n-p\geq 15.\) The corresponding extremal graphs are described as well.
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    topological compete graph
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    extremal graphs
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