\documentclass[12pt]{article}  % standard LaTeX, 12 point type 
\usepackage{amsfonts,latexsym}
\usepackage{amsthm}
\input{psfig.sty} % for imported eps files

% commands for sequential numbering, italicized text in theorems, etc.:

\newtheorem{theorem}{Theorem}[section]
\newtheorem{proposition}[theorem]{Proposition}
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{conjecture}[theorem]{Conjecture}

\theoremstyle{definition}
\newtheorem{defn}{Definition}[section] 
\newtheorem{example}{Example}[section]

% unnumbered environments:

\theoremstyle{remark}
\newtheorem*{remark}{Remark}
\newtheorem*{notation}{Notation}
\newtheorem*{note}{Note}

\title{Title here}
\author{Your name(s) here}
\date{\today}         

\begin{document}

% examples of some useful macros:

\newcommand{\CC}{\mathbb C} % blackboard math , for ``complex,'' etc

%\newcommand{\qed}{$\Box$}      % box  indicating end of proof.

% for a sequence of unnumbered displayed equations:
\newcommand{\beas}{\begin{eqnarray*}} 
\newcommand{\eeas}{\end{eqnarray*}} 

\newcommand{\bm}[1]{{\mbox{\boldmath $#1$}}} % for boldface math symbols 

% for binomial coefficients (AmS-LaTeX)
\newcommand{\bc}[2]{\genfrac{(}{)}{0pt}{}{#1}{#2}}

% for two rows, say under a summation sign (AmS-LaTeX)
\newcommand{\tworow}[2]{\genfrac{}{}{0pt}{}{#1}{#2}}

\begin{abstract}
put abstract here
\end{abstract}

\maketitle


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\section{Introduction (or perhaps some other name)}\label{sec:intro}



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\section{put name of next section here}\label{put label here}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{thebibliography}{9}  % ``9'' specifies that the bibliography
% has just one-digit reference numbers.

\bibitem{put bibitem name here} put bibitem here

\end{thebibliography}

\end{document}