Garza-Hume C E, Padilla P
IIMAS-FENOMEC, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, Mexico.
Eur Phys J E Soft Matter. 2007 May;23(1):7-11. doi: 10.1140/epje/i2006-10082-4. Epub 2007 May 9.
We construct local energy-minimizing bubble clusters in the plane that are not simply-connected. Numerical evidence suggests that these minima are not isolated.