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Enumeration via partitions. (English)
Consortium, No. 98, 17-21 (2010).
Summary: In 1995, Branko Grünbaum published a fascinating new classification for convex quadrilaterals. Grünbaum starts by observing that there are seven patterns for the side lengths of a convex quadrilateral. Although he did not actually talk about partitions, one way to think of what he did is to look at the partitions of 4.
Classification: G40 K20
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