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View File Name : sample.ua.tex

\documentclass{amsart}
\usepackage{amssymb,latexsym}

\usepackage[cp1251]{inputenc} %% for windows
\usepackage[english,russian,ukrainian]{babel}


\theoremstyle{plain}
\newtheorem{theorem}{Theorem}
\newtheorem{lemma}{Lemma}
\newtheorem{corollary}{Corollary}
\newtheorem{proposition}{Proposition}

\theoremstyle{definition}
\newtheorem{definition}{Definition}

\theoremstyle{remark}
\newtheorem{remark}{Remark}
\newtheorem{example}{Example}

\begin{document}
\title{Paper Title}
\author{A. Author}
\address{Address of the first author}
\email{aauthor@email.com}

\author{B. Author}
\address{Address of the second author}
\email{bauthor@email.net}

\begin{abstract}
Some abstract.
\end{abstract}

\subjclass{34B10, 34B15}
%\udc{517.9}
\keywords{equation, other sample keywords}

\maketitle

\section{Introduction, etc}
\section{Results}

\subsection{Something}
We have
\begin{theorem}\label{thm:1}
\end{theorem}

\begin{remark}\label{rem:1}
As is shown byTheorem~\ref{thm:1}, ...
\end{remark}
\begin{thebibliography}{99}
\bibitem{some1}S. S. Some, ``Title,'' J. Journal, {\bf 4}, No.~4, 12--24 (2003).
\end{thebibliography}

\end{document}