\documentclass{beamer}
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\usepackage{cite}
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\title{Cohoadrics}
\author[P. A \& Ma. H]{Pdi and Mani}
\date[Dec. 2015]{\today}

\begin{document}

\begin{frame}[plain,t]
\titlepage
man
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\section{Preliminaries}
\begin{frame}{Group Action}
\vspace*{0.5cm}
$\textcolor{blue}{M}=$Semi-Riemannian manifold\pause\hspace*{3cm} $\textcolor{red}{G}=$Lie group\pause
\[\theta:\textcolor{red}{G}\overset{homo}{\longrightarrow} Iso(\textcolor{blue}{M})\]\pause
\begin{align*}
\textcolor{red}{G}\times \textcolor{blue}{M}&\overset{smooth}{\longrightarrow} \textcolor{blue}{M}\\
(g,x)\;\;&\mapsto \;\;\theta(g)(x)
\end{align*}
\end{frame}




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 \bibliographystyle{amsplain}
\begin{thebibliography}{99}
 \bibitem{Adams}    S. Adams, \textit{Dynamics On Lorentz Manifolds},  world Scientific, 2001.

      
\end{thebibliography}

\ThankYouFrame
Thank You


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