Proper noun
the Thomson problem
The problem of determining the minimum electrostatic potential energy configuration of a given number of electrons constrained to the surface of a unit sphere that repel each other with a force given by Coulomb's law.
The Thomson problem is a natural consequence of the plum pudding model in the absence of its uniform positive background charge. Source: Internet
There is no known general algorithm to arrange a given number of nodes evenly on a sphere, for any of several definitions of even distribution (see, for example, Thomson problem ). Source: Internet