On the connected-charges Thomson problem
  We investigate the modifications brought about by the linear connectivity among charges in the classical Thomson problem. Instead of packing with local hexagonal order intersperced with topological defects, we find charge distributions with helical symmetry wound around the surface of the sphere. This finding should have repercussions in the viral packing and macroion adsorption theories. 
Anze Slosar and Rudolf Podgornik