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On the number of unique subgraphs of a graph - MaRDI portal

On the number of unique subgraphs of a graph (Q5921501)

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scientific article; zbMATH DE number 3380652
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On the number of unique subgraphs of a graph
scientific article; zbMATH DE number 3380652

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    On the number of unique subgraphs of a graph (English)
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    1972
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    A subgraph \(H\) of a graph \(G\) is unique if \(H\) is not isomorphic to any other subgraph of \(G\). The existence of a graph on \(n\) vertices having at least \(2^{n^2/2-cn^{3/2}}\) unique subgraphs is proven for \(c>{3 \over 2} \sqrt 2\) and \(n\) sufficiently large.
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