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Showing 1 to 1 of 1 for “"Tactical con guration"”.
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On the primarity of some block intersection graphs
A tactical con guration consists of a nite set V of points, a nite set B of blocks and an incidence relation between them, so that all blocks are incident with the same number k points, and all points are incident with the same number r of blocks (See [14] for example ). If v := jV j and b := jBj; …