On Wednesday, October 28th, at 4 PM, Daniel Huson of Bielefeld University, Germany, will speak at Swarthmore College on "Tilings and algorithms". All interested parties are welcome.
Abstract: Associated to any periodic tiling of the Euclidean plane is a certain finite, colored graph, called the "Delaney-Dress symbol" of the tiling. These graphs classify tilings in the sense that two tilings are equivalent if and only if their symbols are isomorphic. We will discuss algorithms that make use of this theory to systematically generate and visualize "all possible" periodic tilings of the Euclidean plane. A Macintosh application called RepTiles will be demonstrated.
Dr. Huson will also be speaking at Smith College on October 26th and at Moravian College on October 30th.