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2010
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13 years 5 months ago
Perfect octagon quadrangle systems
An octagon quadrangle is the graph consisting of an 8-cycle (x1, x2, ..., x8) with two additional chords: the edges {x1, x4} and {x5, x8}. An octagon quadrangle system of order v ...
Luigia Berardi, Mario Gionfriddo, Rosaria Rota