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\begin{document}
\newtheorem{The}{Theorem}[section]


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\title{Periodic singular problem with quasilinear differential operator}

\author{\|FirstName |Surname|, Town,
        \|SecondAuthorFirstName |SecondAuthorSurname|, OtherTown, ...}

\rec {January 27, 2006}

\dedicatory{Cordially dedicated to ...}

\abstract
   We study ...
\endabstract

\keywords 
   Negative solution, positive solution,
\endkeywords

\subjclass 
34B16, 34C25
\endsubjclass



\section{Introduction}\label{sec1}

Some text...

\begin{The}\label{T1}
   Assume ...
\end{The}

\proof 
 Notice that, ...
So
\endproof


...

{\small
\begin{thebibliography}{999}

\bibitem{bc}
   {\it D.~Bonheure, C.~De~Coster}:
   Forced singular oscillators and the method of lower and upper solutions.
   Topol. Methods Nonlinear Anal. {\bf 22} (2003), 297--317.
 
...
\end{thebibliography}}


{\em Authors' addresses}:
{\em FirstName Surname}, University, Town, Country...
 e-mail: \texttt{tvrdy@math.cas.cz}.

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