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If one has a pattern on a band, frieze, or strip (disregarding color if as often happens more than one color appears), regardless of the artistic content of what one sees, there are exactly 7 different patterns that are possible… Remembering Donald W. Crowe Maker of Connections between Symmetry, ArtRead More →

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I would like to discuss the Jordan curve theorem as part of an intrinsic human activity: storytelling. The Jordan Curve Theorem as a Lusona Allechar Serrano López Harvard University Introduction The Jordan curve theorem is a result in topology that states that every Jordan curve (a plane simple closed curve)Read More →