Frank Morgan

Relaxed Disk Packings

by John Berry, Matthew Dannenberg, Jason Liang, and Yengyi Zeng
2015 NSF “SMALL” undergraduate research Geometry Group

With update below by Iglesias-Ham (all already known).

Abstract. The classic result about the optimal hexagonal packing of unit disks in the plane has recently been partially generalized by Edelsbrunner et al. to allow but penalize overlap for the case of lattice packings. We attempt to remove the restriction to lattice packings. Continue reading ‘Relaxed Disk Packings’ »

When speaking at the 2015 Washington Two-Year Mathematics Conference at Campbell’s Resort, Lake Chelan, I met many wonderful people, including Dale Hoffman of Bellevue College (formerly Bellevue Community College), who agreed to send me the following inspiring chronicle of some of his past students: Continue reading ‘Dale Hoffman on Community College Students’ »