\documentclass[a4paper,12pt]{article}
\usepackage[latin1]{inputenc}
\usepackage[swedish,english]{babel}
\usepackage{amsmath,amsthm}
\usepackage{amssymb}
\usepackage{ifpdf}
\ifpdf
  \usepackage[pdftex]{graphicx}
  \usepackage{epstopdf}
\else
  \usepackage[dvips]{graphicx}
\fi
%\usepackage{subfigure}
%\usepackage{sidecap}
\usepackage[pdftitle={The PDF title},
  pdfauthor={Your Name},
  pdffitwindow=true,
  breaklinks=true,
  colorlinks=true,
  urlcolor=blue,
  linkcolor=red,
  citecolor=red,
  anchorcolor=red]{hyperref}
%\usepackage{pdfpages}
%\usepackage{algorithm}
%\usepackage{algorithmic}
\usepackage{natbib}

%**************************************************************************

\numberwithin{equation}{section}
\numberwithin{table}{section}
\numberwithin{figure}{section}

\theoremstyle{plain}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{proposition}[theorem]{Proposition}
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{conjecture}[theorem]{Conjecture}
%\newtheorem{algorithm}[theorem]{Algorithm}
%\newtheorem{criterion}[theorem]{Criterion}

\theoremstyle{definition}
\newtheorem{definition}{Definition}[section]
\newtheorem{assumption}[definition]{Assumption}
\newtheorem{convention}[definition]{Convention}
\newtheorem{example}[definition]{Example}
%\newtheorem{problem}[definition]{Problem}

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

%**************************************************************************

\title{The title}

% this is how UU/IT/TDB writes their affiliation:
\author{The Author\thanks{Division of Scientific Computing, Department
    of Information Technology, Uppsala university, SE-751 05 Uppsala,
    Sweden. \href{mailto:Your.Mail@it.uu.se}{Your.Mail@it.uu.se}}}
% LiTH-student: please agree on a format!

\date{\today}

%**************************************************************************

\begin{document}

\selectlanguage{english}

\maketitle

\begin{abstract}

The abstract.

\end{abstract}

%**************************************************************************

%\section{Introduction}

% the format is free so select your own headings!

%**************************************************************************

\bibliographystyle{abbrvnat}
\bibliography{yourbib}

\end{document}

%**************************************************************************
