To illustrate the kinds of relationship that a hypergraph can tease out of a big data set — and an ordinary graph can’t — Purvine points to a simple example close to home, the world of scientific ...

White proved in the second edition of his book [Wh73, Example 3, p. 169] that g (K 3,3,3,3) is at most 5. Jungerman [Ju75] reports that the genus of this graph is at least 5, but his conclusion has ...

This example generates several graphs of sales data that can be accessed from a single Web page. The graphs are two bar charts of summary sales data and three pie charts that break the data down by ...