\documentclass[12pt]{amsart}
\usepackage{amsmath,amssymb,amsthm, amsfonts} % math
\usepackage{graphicx} % need for pictures
\usepackage{pstricks} % for color and drawings
\usepackage{hyperref} % use for hypertext links
\usepackage{mathtools} % This stuff is so that the equations
\mathtoolsset{showonlyrefs} % only show numbers if referenced.
\usepackage{mathrsfs}
\usepackage{multicol} % for 2-column or 3-column. Use \begin{multicols}{2} or whatever,
% with \end{multicols} on the other side.
\usepackage{fullpage} % makes the margines way smaller
%% SECTION/SUBSECTION LABELING
%
% \arabic (1, 2, 3, ...)
% \alph (a, b, c, ...)
% \Alph (A, A, C, ...)
% \roman(i, ii, iii, ...)
% \Roman(I, II, III, ...)
% \fnsymbol (*, �, �, �, �, ...)
%
% Consider also: \thechapter for book/report class or
% \thepart, theenumi....
%
\renewcommand\thesection{\arabic{section}}
\setcounter{section}{-1}
\renewcommand\thesubsection{(\Alph{subsection})}
\renewcommand\theequation{\arabic{equation}}
\renewcommand\theenumi{ \alph{enumi}}
%% TITLE & AUTHOR
\title{TITLE}
\author{Name\\email}
%% Preamble ends here.
\begin{document}
\maketitle
\end{document}
