\documentclass[]{article}
\begin{document}
\title{Distributing $n$ Charges on a Sphere}
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\maketitle
A classic question in physics is the known as Thomson Problem,
consisting in distributing a number $n$ of equal charges on a
sphere. Charges repel each other, and the equilibrium state is
attained when for each particle the total sum of repulsion forces
is null. To find this equilibrium state is equivalent to minimize
the potential energy function
$$f(N)=\sum_{i