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\title{Periodic singular problem with quasilinear differential operator}
\author{\|FirstAuthorFirstName |FirstAuthorSurname|, FirstAuthorTown,
\|SecondAuthorFirstName |SecondAuthorSurname|, SecondAuthorTown, ...}
\rec {January 27, 2006}
\dedicatory{Cordially dedicated to ...}
\abstract
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%%%7 to 12 lines optimum; references in the abstract should be given in full form, e.g. V. Nov\'ak, M. Novotn\'y: Linear extensions of orderings. Czech. Math. J. 50 (2000), 853--864.
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We study ...
\endabstract
\keywords
negative solution, positive solution, ...
\endkeywords
\subjclass
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%%%Mathematics Subject Classification 2020
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34B16, 34C25
\endsubjclass
\thanks
The research has been supported by ...
\endthanks
\section{Introduction}\label{sec1}
Some text...
\begin{The}\label{T1}
Assume ...
\end{The}
\proof
Notice that, ...
So
\endproof
...
{\small
\begin{thebibliography}{999}
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%%%References should be listed in alphabetical order; please supply the zbMATH and MathSciNet numbers as indicated if possible.
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\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. Zbl 1108.34033, MR2036378
...
\end{thebibliography}}
{\small
{\em Authors' addresses}:
{\em FirstName Surname}, University, Town, Country...
e-mail: \texttt{username@\allowbreak xxxx.yyyy.zz}.
}
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