\documentclass{basm}

 \author{Names of authors as
they will be printed underneath the
title}

\title{Full Title of your paper}

\RunningHead{The  names of authors  as they  will
be printed on even numbered pages}%
            {Field for Short Running Head}

\Keywords{Place  the  principal keywords  and phrases here.
For example:  polynomial differential systems, Darboux integrability,
first integrals}

\MSC{34C05, \ 58F14}

\Abstract{Place  your abstract here. }

\CopyRight { The  names of authors, 2099}

\Address
{{\sc First author's name}\\
{His address}\\
E-mail: \emph{First author's email address}
\medskip

{\sc Second author's name}\\
{His address}\\
E-mail: \emph{Second author's email address}
}

 \Received { \ January 10, 1000}


\begin{document}

\maketitle



(Now, just paste in your \LaTeX\ paper)


\section{Main remarks}
Here are the following abbreviations used by the
basm  file:

\begin{thm}
The statement of the theorem.
\end{thm}

\begin{proof}
The respective proof.
\end{proof}

\begin{lem}
The statement of the lemma.
\end{lem}

\begin{prop}
The statement of the proposition.
\end{prop}

\begin{aff}
The statement of the affirmation.
\end{aff}

\begin{cor}
The statement of the corollary.
\end{cor}

\begin{clm}
The statement of the claim.
\end{clm}

\begin{defn}
The body of the definition. Attention: in a definition, only the
\textit{defined} item should be in italics.
\end{defn}

\begin{exa}
The body  of the example.
\end{exa}

\begin{rem}
The body  of the remark.
\end{rem}

\begin{obs}
The body  of the observation.
\end{obs}

\section{Several more remarks}
If you need to use some statements without numerations you could use
the following abbreviations:

\begin{nthm}
The statement of the theorem.
\end{nthm}

\begin{nlem}
The statement of the lemma.
\end{nlem}

\begin{nprop}
The statement of the proposition.
\end{nprop}

\begin{naff}
The statement of the affirmation.
\end{naff}

\begin{ncor}
The statement of the corollary.
\end{ncor}

\begin{nclm}
The statement of the claim.
\end{nclm}

\begin{ndefn}
The body of the definition. Attention: in a definition, only the
\textit{defined} item should be in italics.
\end{ndefn}

\begin{nexa}
The body  of the example.
\end{nexa}

\begin{undefrem}
The body  of the remark.
\end{undefrem}

\begin{undefobs}
The body  of the observation.
\end{undefobs}

\section{About the bibliography}
 The bibliography must  be created
according to   the  style  of the
\texttt{thebibliography} environment.

With respect to ``style", there are some requests:

\begin{itemize}
  \item Authors' names must be in 'small caps' (see examples below).
  \item The title of a book or paper must be in 'italics'.
  \item The rest is plain,  with the
exception of volume numbers, which are bold. The concrete "coordinates"
of the journal could be indicated according to the author's preference.
\end{itemize}

\begin{thebibliography}{9}
\bibitem {CGL} {\sc  Chavarriga J., Giacomini H.,  Llibre J.}
{\it Uniqueness of algebraic limit cycles for quadratic systems}.
J. Math. Anal. and Appl., 2001, {\bf 261}, 85--99.
\bibitem {Jo} {\sc  Jouanolou J.P.}
{\it Equations de Pfaff alg\'ebriques}. Lectures Notes in Mathematics, Vol.~708, Springer-Verlag, New York-Berlin, 1979.
\bibitem{Cairo-Llibre} {\sc  Cairo L,  Llibre J.}
\emph{Phase portraits of quadratic polynomial vector fields having
a rational first integral of degree 2}, Nonlinear Analysis {\bf
67} (2007), 327--348.

\end{thebibliography}




\end{document}