Texas A&M University, Department of Mathematics, 216 Milner Hall, 8th of October 2003, 3:00-4:00

Groups and Dynamcs Seminar


The symmetry of densest packings

Charles Radin of University of Texas at Austin

I will use examples of packings/tilings by Boroczky and Penrose to reexamine Hilbert's eighteenth problem, in particular the relevance of nondiscrete groups in the study of spatial symmetry.

There is an introductory article on this material at: ftp://ftp.ma.utexas.edu/pub/papers/radin/18.pdf