Fano completion through three matchings

ID: fano-completion-through-three-matchings

If is a hyperedge and the links of on four other vertices contain the three perfect matchings of a , then those seven vertices contain a Fano plane. There is a second completion: if the link of contains three disjoint pairs, and the other six vertices contain all transversal triples through those pairs, take four triples of even parity and the three triples containing . This again gives a Fano plane. These finite templates convert forbidden Fano copies into missing cross-part triples.

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