\documentclass{article}
\usepackage{amsmath}
\title{Complete Solid State Physics: Brillouin Zone}
\begin{document}
\maketitle

\section{Brillouin Zone}

The first Brillouin zone is the Wigner-Seitz cell of the reciprocal lattice.
It is the fundamental domain for wavevectors in a periodic solid.

\end{document}
